From abaa20435bac7decffa69e6f965aac9ce29aff6a Mon Sep 17 00:00:00 2001
From: Armin Kuster <akuster808@gmail.com>
Date: Wed, 12 Feb 2020 17:19:15 +0000
Subject: [PATCH] python3-fail2ban: 2-3 conversion

Upstream-Status: OE specific.

fail2ban handles py3 via a 2-3 conversion utility.

Signed-off-by: Armin Kuster <akuster808@gmail.com>
---
 fail2ban/client/actionreader.py               |   4 +-
 fail2ban/client/configparserinc.py            |  10 +-
 fail2ban/client/configreader.py               |   4 +-
 fail2ban/client/csocket.py                    |   4 +-
 fail2ban/client/fail2banclient.py             |   4 +-
 fail2ban/client/fail2banregex.py              |  20 +-
 fail2ban/client/filterreader.py               |   2 +-
 fail2ban/client/jailreader.py                 |   4 +-
 fail2ban/helpers.py                           |  15 +-
 fail2ban/server/action.py                     |  19 +-
 fail2ban/server/actions.py                    |  24 +-
 fail2ban/server/asyncserver.py                |   4 +-
 fail2ban/server/banmanager.py                 |  18 +-
 fail2ban/server/database.py                   |   6 +-
 fail2ban/server/failmanager.py                |   8 +-
 fail2ban/server/failregex.py                  |   9 +-
 fail2ban/server/filter.py                     |  12 +-
 fail2ban/server/filterpoll.py                 |   2 +-
 fail2ban/server/filterpyinotify.py            |   6 +-
 fail2ban/server/ipdns.py                      |  16 +-
 fail2ban/server/jail.py                       |  14 +-
 fail2ban/server/mytime.py                     |   2 +-
 fail2ban/server/server.py                     |  18 +-
 fail2ban/server/strptime.py                   |   6 +-
 fail2ban/server/ticket.py                     |  14 +-
 fail2ban/server/transmitter.py                |   2 +-
 fail2ban/server/utils.py                      |   6 +-
 fail2ban/tests/action_d/test_badips.py        |   2 +-
 fail2ban/tests/actiontestcase.py              |   4 +-
 fail2ban/tests/clientreadertestcase.py        |   4 +-
 fail2ban/tests/databasetestcase.py            |  16 +-
 fail2ban/tests/datedetectortestcase.py        |   6 +-
 fail2ban/tests/fail2banclienttestcase.py      |   8 +-
 fail2ban/tests/failmanagertestcase.py         |  10 +-
 .../tests/files/config/apache-auth/digest.py  |  20 +-
 fail2ban/tests/filtertestcase.py              |  92 ++---
 fail2ban/tests/misctestcase.py                |  22 +-
 fail2ban/tests/observertestcase.py            |  34 +-
 fail2ban/tests/samplestestcase.py             |   8 +-
 fail2ban/tests/servertestcase.py              |  28 +-
 fail2ban/tests/sockettestcase.py              |   2 +-
 fail2ban/tests/utils.py                       |  22 +-
 setup.py                                      | 326 ------------------
 43 files changed, 264 insertions(+), 593 deletions(-)
 delete mode 100755 setup.py

diff --git a/fail2ban/client/actionreader.py b/fail2ban/client/actionreader.py
index 80617a50..ecf323c5 100644
--- a/fail2ban/client/actionreader.py
+++ b/fail2ban/client/actionreader.py
@@ -90,11 +90,11 @@ class ActionReader(DefinitionInitConfigReader):
 		stream = list()
 		stream.append(head + ["addaction", self._name])
 		multi = []
-		for opt, optval in opts.iteritems():
+		for opt, optval in opts.items():
 			if opt in self._configOpts and not opt.startswith('known/'):
 				multi.append([opt, optval])
 		if self._initOpts:
-			for opt, optval in self._initOpts.iteritems():
+			for opt, optval in self._initOpts.items():
 				if opt not in self._configOpts and not opt.startswith('known/'):
 					multi.append([opt, optval])
 		if len(multi) > 1:
diff --git a/fail2ban/client/configparserinc.py b/fail2ban/client/configparserinc.py
index e0f39579..45c77437 100644
--- a/fail2ban/client/configparserinc.py
+++ b/fail2ban/client/configparserinc.py
@@ -62,7 +62,7 @@ if sys.version_info >= (3,2):
 					parser, option, accum, rest, section, map, *args, **kwargs)
 
 else: # pragma: no cover
-	from ConfigParser import SafeConfigParser, \
+	from configparser import SafeConfigParser, \
 		InterpolationMissingOptionError, NoOptionError, NoSectionError
 
 	# Interpolate missing known/option as option from default section
@@ -327,7 +327,7 @@ after = 1.conf
 			# mix it with defaults:
 			return set(opts.keys()) | set(self._defaults)
 		# only own option names:
-		return opts.keys()
+		return list(opts.keys())
 
 	def read(self, filenames, get_includes=True):
 		if not isinstance(filenames, list):
@@ -356,7 +356,7 @@ after = 1.conf
 					ret += i
 					# merge defaults and all sections to self:
 					alld.update(cfg.get_defaults())
-					for n, s in cfg.get_sections().iteritems():
+					for n, s in cfg.get_sections().items():
 						# conditional sections
 						cond = SafeConfigParserWithIncludes.CONDITIONAL_RE.match(n)
 						if cond:
@@ -366,7 +366,7 @@ after = 1.conf
 								del(s['__name__'])
 							except KeyError:
 								pass
-							for k in s.keys():
+							for k in list(s.keys()):
 								v = s.pop(k)
 								s[k + cond] = v
 						s2 = alls.get(n)
@@ -399,7 +399,7 @@ after = 1.conf
 			sec.update(options)
 			return
 		sk = {}
-		for k, v in options.iteritems():
+		for k, v in options.items():
 			if not k.startswith(pref) and k != '__name__':
 				sk[pref+k] = v
 		sec.update(sk)
diff --git a/fail2ban/client/configreader.py b/fail2ban/client/configreader.py
index 20709b72..b5167409 100644
--- a/fail2ban/client/configreader.py
+++ b/fail2ban/client/configreader.py
@@ -26,7 +26,7 @@ __license__ = "GPL"
 
 import glob
 import os
-from ConfigParser import NoOptionError, NoSectionError
+from configparser import NoOptionError, NoSectionError
 
 from .configparserinc import sys, SafeConfigParserWithIncludes, logLevel
 from ..helpers import getLogger, _as_bool, _merge_dicts, substituteRecursiveTags
@@ -197,7 +197,7 @@ class ConfigReaderUnshared(SafeConfigParserWithIncludes):
 		config_files += sorted(glob.glob('%s/*.local' % config_dir))
 
 		# choose only existing ones
-		config_files = filter(os.path.exists, config_files)
+		config_files = list(filter(os.path.exists, config_files))
 
 		if len(config_files):
 			# at least one config exists and accessible
diff --git a/fail2ban/client/csocket.py b/fail2ban/client/csocket.py
index ab3e294b..9417cde9 100644
--- a/fail2ban/client/csocket.py
+++ b/fail2ban/client/csocket.py
@@ -47,7 +47,7 @@ class CSocket:
 	
 	def send(self, msg, nonblocking=False, timeout=None):
 		# Convert every list member to string
-		obj = dumps(map(CSocket.convert, msg), HIGHEST_PROTOCOL)
+		obj = dumps(list(map(CSocket.convert, msg)), HIGHEST_PROTOCOL)
 		self.__csock.send(obj + CSPROTO.END)
 		return self.receive(self.__csock, nonblocking, timeout)
 
@@ -71,7 +71,7 @@ class CSocket:
 	@staticmethod
 	def convert(m):
 		"""Convert every "unexpected" member of message to string"""
-		if isinstance(m, (basestring, bool, int, float, list, dict, set)):
+		if isinstance(m, (str, bool, int, float, list, dict, set)):
 			return m
 		else: # pragma: no cover
 			return str(m)
diff --git a/fail2ban/client/fail2banclient.py b/fail2ban/client/fail2banclient.py
index 7c90ca40..7eb11684 100755
--- a/fail2ban/client/fail2banclient.py
+++ b/fail2ban/client/fail2banclient.py
@@ -45,7 +45,7 @@ def _thread_name():
 	return threading.current_thread().__class__.__name__
 
 def input_command(): # pragma: no cover
-	return raw_input(PROMPT)
+	return input(PROMPT)
 
 ##
 #
@@ -444,7 +444,7 @@ class Fail2banClient(Fail2banCmdLine, Thread):
 			return False
 		finally:
 			self._alive = False
-			for s, sh in _prev_signals.iteritems():
+			for s, sh in _prev_signals.items():
 				signal.signal(s, sh)
 
 
diff --git a/fail2ban/client/fail2banregex.py b/fail2ban/client/fail2banregex.py
index 513b765d..4a71b3c0 100644
--- a/fail2ban/client/fail2banregex.py
+++ b/fail2ban/client/fail2banregex.py
@@ -41,10 +41,10 @@ import shlex
 import sys
 import time
 import time
-import urllib
+import urllib.request, urllib.parse, urllib.error
 from optparse import OptionParser, Option
 
-from ConfigParser import NoOptionError, NoSectionError, MissingSectionHeaderError
+from configparser import NoOptionError, NoSectionError, MissingSectionHeaderError
 
 try: # pragma: no cover
 	from ..server.filtersystemd import FilterSystemd
@@ -68,7 +68,7 @@ def debuggexURL(sample, regex, multiline=False, useDns="yes"):
 		'flavor': 'python'
 	}
 	if multiline: args['flags'] = 'm'
-	return 'https://www.debuggex.com/?' + urllib.urlencode(args)
+	return 'https://www.debuggex.com/?' + urllib.parse.urlencode(args)
 
 def output(args): # pragma: no cover (overriden in test-cases)
 	print(args)
@@ -244,7 +244,7 @@ class Fail2banRegex(object):
 
 	def __init__(self, opts):
 		# set local protected members from given options:
-		self.__dict__.update(dict(('_'+o,v) for o,v in opts.__dict__.iteritems()))
+		self.__dict__.update(dict(('_'+o,v) for o,v in opts.__dict__.items()))
 		self._opts = opts
 		self._maxlines_set = False		  # so we allow to override maxlines in cmdline
 		self._datepattern_set = False
@@ -304,7 +304,7 @@ class Fail2banRegex(object):
 		realopts = {}
 		combopts = reader.getCombined()
 		# output all options that are specified in filter-argument as well as some special (mostly interested):
-		for k in ['logtype', 'datepattern'] + fltOpt.keys():
+		for k in ['logtype', 'datepattern'] + list(fltOpt.keys()):
 			# combined options win, but they contain only a sub-set in filter expected keys,
 			# so get the rest from definition section:
 			try:
@@ -424,7 +424,7 @@ class Fail2banRegex(object):
 			self.output( "Use %11s line : %s" % (regex, shortstr(value)) )
 			regex_values = {regextype: [RegexStat(value)]}
 
-		for regextype, regex_values in regex_values.iteritems():
+		for regextype, regex_values in regex_values.items():
 			regex = regextype + 'regex'
 			setattr(self, "_" + regex, regex_values)
 			for regex in regex_values:
@@ -523,10 +523,10 @@ class Fail2banRegex(object):
 							output(ret[1])
 					elif self._opts.out == 'msg':
 						for ret in ret:
-							output('\n'.join(map(lambda v:''.join(v for v in v), ret[3].get('matches'))))
+							output('\n'.join([''.join(v for v in v) for v in ret[3].get('matches')]))
 					elif self._opts.out == 'row':
 						for ret in ret:
-							output('[%r,\t%r,\t%r],' % (ret[1],ret[2],dict((k,v) for k, v in ret[3].iteritems() if k != 'matches')))
+							output('[%r,\t%r,\t%r],' % (ret[1],ret[2],dict((k,v) for k, v in ret[3].items() if k != 'matches')))
 					else:
 						for ret in ret:
 							output(ret[3].get(self._opts.out))
@@ -565,9 +565,9 @@ class Fail2banRegex(object):
 					ans = [[]]
 					for arg in [l, regexlist]:
 						ans = [ x + [y] for x in ans for y in arg ]
-					b = map(lambda a: a[0] +  ' | ' + a[1].getFailRegex() + ' |  ' + 
+					b = [a[0] +  ' | ' + a[1].getFailRegex() + ' |  ' + 
 						debuggexURL(self.encode_line(a[0]), a[1].getFailRegex(), 
-							multiline, self._opts.usedns), ans)
+							multiline, self._opts.usedns) for a in ans]
 					pprint_list([x.rstrip() for x in b], header)
 				else:
 					output( "%s too many to print.  Use --print-all-%s " \
diff --git a/fail2ban/client/filterreader.py b/fail2ban/client/filterreader.py
index 413f125e..4f0cc4cf 100644
--- a/fail2ban/client/filterreader.py
+++ b/fail2ban/client/filterreader.py
@@ -71,7 +71,7 @@ class FilterReader(DefinitionInitConfigReader):
 	@staticmethod
 	def _fillStream(stream, opts, jailName):
 		prio0idx = 0
-		for opt, value in opts.iteritems():
+		for opt, value in opts.items():
 			if opt in ("failregex", "ignoreregex"):
 				if value is None: continue
 				multi = []
diff --git a/fail2ban/client/jailreader.py b/fail2ban/client/jailreader.py
index 50c1d047..969d0bc0 100644
--- a/fail2ban/client/jailreader.py
+++ b/fail2ban/client/jailreader.py
@@ -117,7 +117,7 @@ class JailReader(ConfigReader):
 	}
 	_configOpts.update(FilterReader._configOpts)
 
-	_ignoreOpts = set(['action', 'filter', 'enabled'] + FilterReader._configOpts.keys())
+	_ignoreOpts = set(['action', 'filter', 'enabled'] + list(FilterReader._configOpts.keys()))
 
 	def getOptions(self):
 
@@ -236,7 +236,7 @@ class JailReader(ConfigReader):
 			stream.extend(self.__filter.convert())
 		# and using options from jail:
 		FilterReader._fillStream(stream, self.__opts, self.__name)
-		for opt, value in self.__opts.iteritems():
+		for opt, value in self.__opts.items():
 			if opt == "logpath":
 				if self.__opts.get('backend', '').startswith("systemd"): continue
 				found_files = 0
diff --git a/fail2ban/helpers.py b/fail2ban/helpers.py
index 6f2bcdd7..7e563696 100644
--- a/fail2ban/helpers.py
+++ b/fail2ban/helpers.py
@@ -31,6 +31,7 @@ import traceback
 from threading import Lock
 
 from .server.mytime import MyTime
+import importlib
 
 try:
 	import ctypes
@@ -63,7 +64,7 @@ if sys.version_info < (3,): # pragma: 3.x no cover
 					from imp import load_dynamic as __ldm
 					_sys = __ldm('_sys', 'sys')
 				except ImportError: # pragma: no cover - only if load_dynamic fails
-					reload(sys)
+					importlib.reload(sys)
 					_sys = sys
 			if hasattr(_sys, "setdefaultencoding"):
 				_sys.setdefaultencoding(encoding)
@@ -101,7 +102,7 @@ if sys.version_info >= (3,): # pragma: 2.x no cover
 else: # pragma: 3.x no cover
 	def uni_decode(x, enc=PREFER_ENC, errors='strict'):
 		try:
-			if isinstance(x, unicode):
+			if isinstance(x, str):
 				return x.encode(enc, errors)
 			return x
 		except (UnicodeDecodeError, UnicodeEncodeError): # pragma: no cover - unsure if reachable
@@ -110,7 +111,7 @@ else: # pragma: 3.x no cover
 			return x.encode(enc, 'replace')
 	if sys.getdefaultencoding().upper() != 'UTF-8': # pragma: no cover - utf-8 is default encoding now
 		def uni_string(x):
-			if not isinstance(x, unicode):
+			if not isinstance(x, str):
 				return str(x)
 			return x.encode(PREFER_ENC, 'replace')
 	else:
@@ -118,7 +119,7 @@ else: # pragma: 3.x no cover
 
 
 def _as_bool(val):
-	return bool(val) if not isinstance(val, basestring) \
+	return bool(val) if not isinstance(val, str) \
 		else val.lower() in ('1', 'on', 'true', 'yes')
 
 
@@ -326,7 +327,7 @@ def splitwords(s):
 	"""
 	if not s:
 		return []
-	return filter(bool, map(lambda v: v.strip(), re.split('[ ,\n]+', s)))
+	return list(filter(bool, [v.strip() for v in re.split('[ ,\n]+', s)]))
 
 if sys.version_info >= (3,5):
 	eval(compile(r'''if 1:
@@ -436,7 +437,7 @@ def substituteRecursiveTags(inptags, conditional='',
 	while True:
 		repFlag = False
 		# substitute each value:
-		for tag in tags.iterkeys():
+		for tag in tags.keys():
 			# ignore escaped or already done (or in ignore list):
 			if tag in ignore or tag in done: continue
 			# ignore replacing callable items from calling map - should be converted on demand only (by get):
@@ -476,7 +477,7 @@ def substituteRecursiveTags(inptags, conditional='',
 					m = tre_search(value, m.end())
 					continue
 				# if calling map - be sure we've string:
-				if not isinstance(repl, basestring): repl = uni_string(repl)
+				if not isinstance(repl, str): repl = uni_string(repl)
 				value = value.replace('<%s>' % rtag, repl)
 				#logSys.log(5, 'value now: %s' % value)
 				# increment reference count:
diff --git a/fail2ban/server/action.py b/fail2ban/server/action.py
index 5c817fc0..81d50689 100644
--- a/fail2ban/server/action.py
+++ b/fail2ban/server/action.py
@@ -111,9 +111,9 @@ class CallingMap(MutableMapping, object):
 	def _asdict(self, calculated=False, checker=None):
 		d = dict(self.data, **self.storage)
 		if not calculated:
-			return dict((n,v) for n,v in d.iteritems() \
+			return dict((n,v) for n,v in d.items() \
 				if not callable(v) or n in self.CM_REPR_ITEMS)
-		for n,v in d.items():
+		for n,v in list(d.items()):
 			if callable(v):
 				try:
 					# calculate:
@@ -179,7 +179,7 @@ class CallingMap(MutableMapping, object):
 		return self.__class__(_merge_copy_dicts(self.data, self.storage))
 
 
-class ActionBase(object):
+class ActionBase(object, metaclass=ABCMeta):
 	"""An abstract base class for actions in Fail2Ban.
 
 	Action Base is a base definition of what methods need to be in
@@ -209,7 +209,6 @@ class ActionBase(object):
 	Any additional arguments specified in `jail.conf` or passed
 	via `fail2ban-client` will be passed as keyword arguments.
 	"""
-	__metaclass__ = ABCMeta
 
 	@classmethod
 	def __subclasshook__(cls, C):
@@ -420,7 +419,7 @@ class CommandAction(ActionBase):
 			if not callable(family): # pragma: no cover
 				return self.__substCache.get(key, {}).get(family)
 			# family as expression - use it to filter values:
-			return [v for f, v in self.__substCache.get(key, {}).iteritems() if family(f)]
+			return [v for f, v in self.__substCache.get(key, {}).items() if family(f)]
 		cmd = args[0]
 		if cmd: # set:
 			try:
@@ -432,7 +431,7 @@ class CommandAction(ActionBase):
 			try:
 				famd = self.__substCache[key]
 				cmd = famd.pop(family)
-				for family, v in famd.items():
+				for family, v in list(famd.items()):
 					if v == cmd:
 						del famd[family]
 			except KeyError: # pragma: no cover
@@ -448,7 +447,7 @@ class CommandAction(ActionBase):
 		res = True
 		err = 'Script error'
 		if not family: # all started:
-			family = [famoper for (famoper,v) in self.__started.iteritems() if v]
+			family = [famoper for (famoper,v) in self.__started.items() if v]
 		for famoper in family:
 			try:
 				cmd = self._getOperation(tag, famoper)
@@ -617,7 +616,7 @@ class CommandAction(ActionBase):
 		and executes the resulting command.
 		"""
 		# collect started families, may be started on demand (conditional):
-		family = [f for (f,v) in self.__started.iteritems() if v & 3 == 3]; # started and contains items
+		family = [f for (f,v) in self.__started.items() if v & 3 == 3]; # started and contains items
 		# if nothing contains items:
 		if not family: return True
 		# flush:
@@ -642,7 +641,7 @@ class CommandAction(ActionBase):
 		"""
 		# collect started families, if started on demand (conditional):
 		if family is None:
-			family = [f for (f,v) in self.__started.iteritems() if v]
+			family = [f for (f,v) in self.__started.items() if v]
 			# if no started (on demand) actions:
 			if not family: return True
 			self.__started = {}
@@ -676,7 +675,7 @@ class CommandAction(ActionBase):
 		ret = True
 		# for each started family:
 		if self.actioncheck:
-			for (family, started) in self.__started.items():
+			for (family, started) in list(self.__started.items()):
 				if started and not self._invariantCheck(family, beforeRepair):
 					# reset started flag and command of executed operation:
 					self.__started[family] = 0
diff --git a/fail2ban/server/actions.py b/fail2ban/server/actions.py
index 24fea838..94b9c3ed 100644
--- a/fail2ban/server/actions.py
+++ b/fail2ban/server/actions.py
@@ -156,11 +156,11 @@ class Actions(JailThread, Mapping):
 		else:
 			if hasattr(self, '_reload_actions'):
 				# reload actions after all parameters set via stream:
-				for name, initOpts in self._reload_actions.iteritems():
+				for name, initOpts in self._reload_actions.items():
 					if name in self._actions:
 						self._actions[name].reload(**(initOpts if initOpts else {}))
 				# remove obsolete actions (untouched by reload process):
-				delacts = OrderedDict((name, action) for name, action in self._actions.iteritems()
+				delacts = OrderedDict((name, action) for name, action in self._actions.items()
 					if name not in self._reload_actions)
 				if len(delacts):
 					# unban all tickets using removed actions only:
@@ -289,7 +289,7 @@ class Actions(JailThread, Mapping):
 		"""
 		if actions is None:
 			actions = self._actions
-		revactions = actions.items()
+		revactions = list(actions.items())
 		revactions.reverse()
 		for name, action in revactions:
 			try:
@@ -314,7 +314,7 @@ class Actions(JailThread, Mapping):
 			True when the thread exits nicely.
 		"""
 		cnt = 0
-		for name, action in self._actions.iteritems():
+		for name, action in self._actions.items():
 			try:
 				action.start()
 			except Exception as e:
@@ -474,7 +474,7 @@ class Actions(JailThread, Mapping):
 					Observers.Main.add('banFound', bTicket, self._jail, btime)
 				logSys.notice("[%s] %sBan %s", self._jail.name, ('' if not bTicket.restored else 'Restore '), ip)
 				# do actions :
-				for name, action in self._actions.iteritems():
+				for name, action in self._actions.items():
 					try:
 						if ticket.restored and getattr(action, 'norestored', False):
 							continue
@@ -511,13 +511,13 @@ class Actions(JailThread, Mapping):
 					if bTicket.banEpoch == self.banEpoch and diftm > 3:
 						# avoid too often checks:
 						if not rebanacts and MyTime.time() > self.__lastConsistencyCheckTM + 3:
-							for action in self._actions.itervalues():
+							for action in self._actions.values():
 								action.consistencyCheck()
 							self.__lastConsistencyCheckTM = MyTime.time()
 					# check epoch in order to reban it:
 					if bTicket.banEpoch < self.banEpoch:
 						if not rebanacts: rebanacts = dict(
-							(name, action) for name, action in self._actions.iteritems()
+							(name, action) for name, action in self._actions.items()
 								if action.banEpoch > bTicket.banEpoch)
 						cnt += self.__reBan(bTicket, actions=rebanacts)
 				else: # pragma: no cover - unexpected: ticket is not banned for some reasons - reban using all actions:
@@ -542,8 +542,8 @@ class Actions(JailThread, Mapping):
 		ip = ticket.getIP()
 		aInfo = self.__getActionInfo(ticket)
 		if log:
-			logSys.notice("[%s] Reban %s%s", self._jail.name, aInfo["ip"], (', action %r' % actions.keys()[0] if len(actions) == 1 else ''))
-		for name, action in actions.iteritems():
+			logSys.notice("[%s] Reban %s%s", self._jail.name, aInfo["ip"], (', action %r' % list(actions.keys())[0] if len(actions) == 1 else ''))
+		for name, action in actions.items():
 			try:
 				logSys.debug("[%s] action %r: reban %s", self._jail.name, name, ip)
 				if not aInfo.immutable: aInfo.reset()
@@ -567,7 +567,7 @@ class Actions(JailThread, Mapping):
 		if not self.__banManager._inBanList(ticket): return
 		# do actions :
 		aInfo = None
-		for name, action in self._actions.iteritems():
+		for name, action in self._actions.items():
 			try:
 				if ticket.restored and getattr(action, 'norestored', False):
 					continue
@@ -616,7 +616,7 @@ class Actions(JailThread, Mapping):
 		cnt = 0
 		# first we'll execute flush for actions supporting this operation:
 		unbactions = {}
-		for name, action in (actions if actions is not None else self._actions).iteritems():
+		for name, action in (actions if actions is not None else self._actions).items():
 			try:
 				if hasattr(action, 'flush') and (not isinstance(action, CommandAction) or action.actionflush):
 					logSys.notice("[%s] Flush ticket(s) with %s", self._jail.name, name)
@@ -671,7 +671,7 @@ class Actions(JailThread, Mapping):
 		aInfo = self.__getActionInfo(ticket)
 		if log:
 			logSys.notice("[%s] Unban %s", self._jail.name, aInfo["ip"])
-		for name, action in unbactions.iteritems():
+		for name, action in unbactions.items():
 			try:
 				logSys.debug("[%s] action %r: unban %s", self._jail.name, name, ip)
 				if not aInfo.immutable: aInfo.reset()
diff --git a/fail2ban/server/asyncserver.py b/fail2ban/server/asyncserver.py
index e3400737..f5f9740b 100644
--- a/fail2ban/server/asyncserver.py
+++ b/fail2ban/server/asyncserver.py
@@ -178,7 +178,7 @@ def loop(active, timeout=None, use_poll=False, err_count=None):
 			elif err_count['listen'] > 100: # pragma: no cover - normally unreachable
 				if (
 					   e.args[0] == errno.EMFILE # [Errno 24] Too many open files
-					or sum(err_count.itervalues()) > 1000
+					or sum(err_count.values()) > 1000
 				):
 					logSys.critical("Too many errors - critical count reached %r", err_count)
 					break
@@ -220,7 +220,7 @@ class AsyncServer(asyncore.dispatcher):
 			elif self.__errCount['accept'] > 100:
 				if (
 					  (isinstance(e, socket.error) and e.args[0] == errno.EMFILE) # [Errno 24] Too many open files
-					or sum(self.__errCount.itervalues()) > 1000
+					or sum(self.__errCount.values()) > 1000
 				):
 					logSys.critical("Too many errors - critical count reached %r", self.__errCount)
 					self.stop()
diff --git a/fail2ban/server/banmanager.py b/fail2ban/server/banmanager.py
index 5770bfd7..9bb44971 100644
--- a/fail2ban/server/banmanager.py
+++ b/fail2ban/server/banmanager.py
@@ -105,9 +105,9 @@ class BanManager:
 	def getBanList(self, ordered=False, withTime=False):
 		with self.__lock:
 			if not ordered:
-				return self.__banList.keys()
+				return list(self.__banList.keys())
 			lst = []
-			for ticket in self.__banList.itervalues():
+			for ticket in self.__banList.values():
 				eob = ticket.getEndOfBanTime(self.__banTime)
 				lst.append((ticket,eob))
 			lst.sort(key=lambda t: t[1])
@@ -126,7 +126,7 @@ class BanManager:
 	
 	def __iter__(self):
 		with self.__lock:
-			return self.__banList.itervalues()
+			return iter(self.__banList.values())
 
 	##
 	# Returns normalized value
@@ -165,7 +165,7 @@ class BanManager:
 				return return_dict
 		# get ips in lock:
 		with self.__lock:
-			banIPs = [banData.getIP() for banData in self.__banList.values()]
+			banIPs = [banData.getIP() for banData in list(self.__banList.values())]
 		# get cymru info:
 		try:
 			for ip in banIPs:
@@ -341,7 +341,7 @@ class BanManager:
 			# Gets the list of ticket to remove (thereby correct next unban time).
 			unBanList = {}
 			nextUnbanTime = BanTicket.MAX_TIME
-			for fid,ticket in self.__banList.iteritems():
+			for fid,ticket in self.__banList.items():
 				# current time greater as end of ban - timed out:
 				eob = ticket.getEndOfBanTime(self.__banTime)
 				if time > eob:
@@ -357,15 +357,15 @@ class BanManager:
 			if len(unBanList):
 				if len(unBanList) / 2.0 <= len(self.__banList) / 3.0:
 					# few as 2/3 should be removed - remove particular items:
-					for fid in unBanList.iterkeys():
+					for fid in unBanList.keys():
 						del self.__banList[fid]
 				else:
 					# create new dictionary without items to be deleted:
-					self.__banList = dict((fid,ticket) for fid,ticket in self.__banList.iteritems() \
+					self.__banList = dict((fid,ticket) for fid,ticket in self.__banList.items() \
 						if fid not in unBanList)
 						
 			# return list of tickets:
-			return unBanList.values()
+			return list(unBanList.values())
 
 	##
 	# Flush the ban list.
@@ -375,7 +375,7 @@ class BanManager:
 	
 	def flushBanList(self):
 		with self.__lock:
-			uBList = self.__banList.values()
+			uBList = list(self.__banList.values())
 			self.__banList = dict()
 			return uBList
 
diff --git a/fail2ban/server/database.py b/fail2ban/server/database.py
index ed736a7a..0e8c9aec 100644
--- a/fail2ban/server/database.py
+++ b/fail2ban/server/database.py
@@ -67,13 +67,13 @@ if sys.version_info >= (3,): # pragma: 2.x no cover
 else: # pragma: 3.x no cover
 	def _normalize(x):
 		if isinstance(x, dict):
-			return dict((_normalize(k), _normalize(v)) for k, v in x.iteritems())
+			return dict((_normalize(k), _normalize(v)) for k, v in x.items())
 		elif isinstance(x, (list, set)):
 			return [_normalize(element) for element in x]
-		elif isinstance(x, unicode):
+		elif isinstance(x, str):
 			# in 2.x default text_factory is unicode - so return proper unicode here:
 			return x.encode(PREFER_ENC, 'replace').decode(PREFER_ENC)
-		elif isinstance(x, basestring):
+		elif isinstance(x, str):
 			return x.decode(PREFER_ENC, 'replace')
 		return x
 
diff --git a/fail2ban/server/failmanager.py b/fail2ban/server/failmanager.py
index 93c028fb..a9c6b5f6 100644
--- a/fail2ban/server/failmanager.py
+++ b/fail2ban/server/failmanager.py
@@ -57,7 +57,7 @@ class FailManager:
 	def getFailCount(self):
 		# may be slow on large list of failures, should be used for test purposes only...
 		with self.__lock:
-			return len(self.__failList), sum([f.getRetry() for f in self.__failList.values()])
+			return len(self.__failList), sum([f.getRetry() for f in list(self.__failList.values())])
 
 	def getFailTotal(self):
 		with self.__lock:
@@ -125,7 +125,7 @@ class FailManager:
 				# in case of having many active failures, it should be ran only
 				# if debug level is "low" enough
 				failures_summary = ', '.join(['%s:%d' % (k, v.getRetry())
-											  for k,v in  self.__failList.iteritems()])
+											  for k,v in  self.__failList.items()])
 				logSys.log(logLevel, "Total # of detected failures: %d. Current failures from %d IPs (IP:count): %s"
 							 % (self.__failTotal, len(self.__failList), failures_summary))
 
@@ -138,7 +138,7 @@ class FailManager:
 	
 	def cleanup(self, time):
 		with self.__lock:
-			todelete = [fid for fid,item in self.__failList.iteritems() \
+			todelete = [fid for fid,item in self.__failList.items() \
 				if item.getLastTime() + self.__maxTime <= time]
 			if len(todelete) == len(self.__failList):
 				# remove all:
@@ -152,7 +152,7 @@ class FailManager:
 					del self.__failList[fid]
 			else:
 				# create new dictionary without items to be deleted:
-				self.__failList = dict((fid,item) for fid,item in self.__failList.iteritems() \
+				self.__failList = dict((fid,item) for fid,item in self.__failList.items() \
 					if item.getLastTime() + self.__maxTime > time)
 		self.__bgSvc.service()
 	
diff --git a/fail2ban/server/failregex.py b/fail2ban/server/failregex.py
index f7dafbef..fb75187d 100644
--- a/fail2ban/server/failregex.py
+++ b/fail2ban/server/failregex.py
@@ -128,10 +128,7 @@ class Regex:
 			self._regexObj = re.compile(regex, re.MULTILINE if multiline else 0)
 			self._regex = regex
 			self._altValues = {}
-			for k in filter(
-				lambda k: len(k) > len(ALTNAME_PRE) and k.startswith(ALTNAME_PRE),
-				self._regexObj.groupindex
-			):
+			for k in [k for k in self._regexObj.groupindex if len(k) > len(ALTNAME_PRE) and k.startswith(ALTNAME_PRE)]:
 				n = ALTNAME_CRE.match(k).group(1)
 				self._altValues[k] = n
 			self._altValues = list(self._altValues.items()) if len(self._altValues) else None
@@ -211,7 +208,7 @@ class Regex:
 	#
 	@staticmethod
 	def _tupleLinesBuf(tupleLines):
-		return "\n".join(map(lambda v: "".join(v[::2]), tupleLines)) + "\n"
+		return "\n".join(["".join(v[::2]) for v in tupleLines]) + "\n"
 
 	##
 	# Searches the regular expression.
@@ -223,7 +220,7 @@ class Regex:
 	
 	def search(self, tupleLines, orgLines=None):
 		buf = tupleLines
-		if not isinstance(tupleLines, basestring):
+		if not isinstance(tupleLines, str):
 			buf = Regex._tupleLinesBuf(tupleLines)
 		self._matchCache = self._regexObj.search(buf)
 		if self._matchCache:
diff --git a/fail2ban/server/filter.py b/fail2ban/server/filter.py
index 998fe298..d181fd38 100644
--- a/fail2ban/server/filter.py
+++ b/fail2ban/server/filter.py
@@ -292,7 +292,7 @@ class Filter(JailThread):
 			dd = DateDetector()
 			dd.default_tz = self.__logtimezone
 			if not isinstance(pattern, (list, tuple)):
-				pattern = filter(bool, map(str.strip, re.split('\n+', pattern)))
+				pattern = list(filter(bool, list(map(str.strip, re.split('\n+', pattern)))))
 			for pattern in pattern:
 				dd.appendTemplate(pattern)
 			self.dateDetector = dd
@@ -987,7 +987,7 @@ class FileFilter(Filter):
 	# @return log paths
 
 	def getLogPaths(self):
-		return self.__logs.keys()
+		return list(self.__logs.keys())
 
 	##
 	# Get the log containers
@@ -995,7 +995,7 @@ class FileFilter(Filter):
 	# @return log containers
 
 	def getLogs(self):
-		return self.__logs.values()
+		return list(self.__logs.values())
 
 	##
 	# Get the count of log containers
@@ -1021,7 +1021,7 @@ class FileFilter(Filter):
 
 	def setLogEncoding(self, encoding):
 		encoding = super(FileFilter, self).setLogEncoding(encoding)
-		for log in self.__logs.itervalues():
+		for log in self.__logs.values():
 			log.setEncoding(encoding)
 
 	def getLog(self, path):
@@ -1183,7 +1183,7 @@ class FileFilter(Filter):
 		"""Status of Filter plus files being monitored.
 		"""
 		ret = super(FileFilter, self).status(flavor=flavor)
-		path = self.__logs.keys()
+		path = list(self.__logs.keys())
 		ret.append(("File list", path))
 		return ret
 
@@ -1191,7 +1191,7 @@ class FileFilter(Filter):
 		"""Stop monitoring of log-file(s)
 		"""
 		# stop files monitoring:
-		for path in self.__logs.keys():
+		for path in list(self.__logs.keys()):
 			self.delLogPath(path)
 		# stop thread:
 		super(Filter, self).stop()
diff --git a/fail2ban/server/filterpoll.py b/fail2ban/server/filterpoll.py
index 228a2c8b..d49315cc 100644
--- a/fail2ban/server/filterpoll.py
+++ b/fail2ban/server/filterpoll.py
@@ -176,4 +176,4 @@ class FilterPoll(FileFilter):
 			return False
 
 	def getPendingPaths(self):
-		return self.__file404Cnt.keys()
+		return list(self.__file404Cnt.keys())
diff --git a/fail2ban/server/filterpyinotify.py b/fail2ban/server/filterpyinotify.py
index ca6b253f..b683b860 100644
--- a/fail2ban/server/filterpyinotify.py
+++ b/fail2ban/server/filterpyinotify.py
@@ -158,7 +158,7 @@ class FilterPyinotify(FileFilter):
 		except KeyError: pass
 
 	def getPendingPaths(self):
-		return self.__pending.keys()
+		return list(self.__pending.keys())
 
 	def _checkPending(self):
 		if not self.__pending:
@@ -168,7 +168,7 @@ class FilterPyinotify(FileFilter):
 			return
 		found = {}
 		minTime = 60
-		for path, (retardTM, isDir) in self.__pending.iteritems():
+		for path, (retardTM, isDir) in self.__pending.items():
 			if ntm - self.__pendingChkTime < retardTM:
 				if minTime > retardTM: minTime = retardTM
 				continue
@@ -184,7 +184,7 @@ class FilterPyinotify(FileFilter):
 		self.__pendingChkTime = time.time()
 		self.__pendingMinTime = minTime
 		# process now because we've missed it in monitoring:
-		for path, isDir in found.iteritems():
+		for path, isDir in found.items():
 			self._delPending(path)
 			# refresh monitoring of this:
 			self._refreshWatcher(path, isDir=isDir)
diff --git a/fail2ban/server/ipdns.py b/fail2ban/server/ipdns.py
index 6648dac6..fe8f8db8 100644
--- a/fail2ban/server/ipdns.py
+++ b/fail2ban/server/ipdns.py
@@ -275,7 +275,7 @@ class IPAddr(object):
 			raise ValueError("invalid ipstr %r, too many plen representation" % (ipstr,))
 		if "." in s[1] or ":" in s[1]: # 255.255.255.0 resp. ffff:: style mask
 			s[1] = IPAddr.masktoplen(s[1])
-		s[1] = long(s[1])
+		s[1] = int(s[1])
 		return s
 		
 	def __init(self, ipstr, cidr=CIDR_UNSPEC):
@@ -309,7 +309,7 @@ class IPAddr(object):
 
 				# mask out host portion if prefix length is supplied
 				if cidr is not None and cidr >= 0:
-					mask = ~(0xFFFFFFFFL >> cidr)
+					mask = ~(0xFFFFFFFF >> cidr)
 					self._addr &= mask
 					self._plen = cidr
 
@@ -321,13 +321,13 @@ class IPAddr(object):
 
 				# mask out host portion if prefix length is supplied
 				if cidr is not None and cidr >= 0:
-					mask = ~(0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFL >> cidr)
+					mask = ~(0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF >> cidr)
 					self._addr &= mask
 					self._plen = cidr
 
 				# if IPv6 address is a IPv4-compatible, make instance a IPv4
 				elif self.isInNet(IPAddr.IP6_4COMPAT):
-					self._addr = lo & 0xFFFFFFFFL
+					self._addr = lo & 0xFFFFFFFF
 					self._family = socket.AF_INET
 					self._plen = 32
 		else:
@@ -445,7 +445,7 @@ class IPAddr(object):
 		elif self.isIPv6:
 			# convert network to host byte order
 			hi = self._addr >> 64
-			lo = self._addr & 0xFFFFFFFFFFFFFFFFL
+			lo = self._addr & 0xFFFFFFFFFFFFFFFF
 			binary = struct.pack("!QQ", hi, lo)
 			if self._plen and self._plen < 128:
 				add = "/%d" % self._plen
@@ -503,9 +503,9 @@ class IPAddr(object):
 		if self.family != net.family:
 			return False
 		if self.isIPv4:
-			mask = ~(0xFFFFFFFFL >> net.plen)
+			mask = ~(0xFFFFFFFF >> net.plen)
 		elif self.isIPv6:
-			mask = ~(0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFL >> net.plen)
+			mask = ~(0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF >> net.plen)
 		else:
 			return False
 		
@@ -517,7 +517,7 @@ class IPAddr(object):
 		m4 = (1 << 32)-1
 		mmap = {m6: 128, m4: 32, 0: 0}
 		m = 0
-		for i in xrange(0, 128):
+		for i in range(0, 128):
 			m |= 1 << i
 			if i < 32:
 				mmap[m ^ m4] = 32-1-i
diff --git a/fail2ban/server/jail.py b/fail2ban/server/jail.py
index ce9968a8..5fa5ef10 100644
--- a/fail2ban/server/jail.py
+++ b/fail2ban/server/jail.py
@@ -26,7 +26,7 @@ __license__ = "GPL"
 import logging
 import math
 import random
-import Queue
+import queue
 
 from .actions import Actions
 from ..helpers import getLogger, _as_bool, extractOptions, MyTime
@@ -76,7 +76,7 @@ class Jail(object):
 							"might not function correctly. Please shorten"
 							% name)
 		self.__name = name
-		self.__queue = Queue.Queue()
+		self.__queue = queue.Queue()
 		self.__filter = None
 		# Extra parameters for increase ban time
 		self._banExtra = {};
@@ -127,25 +127,25 @@ class Jail(object):
 			"Failed to initialize any backend for Jail %r" % self.name)
 
 	def _initPolling(self, **kwargs):
-		from filterpoll import FilterPoll
+		from .filterpoll import FilterPoll
 		logSys.info("Jail '%s' uses poller %r" % (self.name, kwargs))
 		self.__filter = FilterPoll(self, **kwargs)
 
 	def _initGamin(self, **kwargs):
 		# Try to import gamin
-		from filtergamin import FilterGamin
+		from .filtergamin import FilterGamin
 		logSys.info("Jail '%s' uses Gamin %r" % (self.name, kwargs))
 		self.__filter = FilterGamin(self, **kwargs)
 
 	def _initPyinotify(self, **kwargs):
 		# Try to import pyinotify
-		from filterpyinotify import FilterPyinotify
+		from .filterpyinotify import FilterPyinotify
 		logSys.info("Jail '%s' uses pyinotify %r" % (self.name, kwargs))
 		self.__filter = FilterPyinotify(self, **kwargs)
 
 	def _initSystemd(self, **kwargs): # pragma: systemd no cover
 		# Try to import systemd
-		from filtersystemd import FilterSystemd
+		from .filtersystemd import FilterSystemd
 		logSys.info("Jail '%s' uses systemd %r" % (self.name, kwargs))
 		self.__filter = FilterSystemd(self, **kwargs)
 
@@ -213,7 +213,7 @@ class Jail(object):
 		try:
 			ticket = self.__queue.get(False)
 			return ticket
-		except Queue.Empty:
+		except queue.Empty:
 			return False
 
 	def setBanTimeExtra(self, opt, value):
diff --git a/fail2ban/server/mytime.py b/fail2ban/server/mytime.py
index 98b69bd4..24bba5cf 100644
--- a/fail2ban/server/mytime.py
+++ b/fail2ban/server/mytime.py
@@ -162,7 +162,7 @@ class MyTime:
 		
 		@returns number (calculated seconds from expression "val")
 		"""
-		if isinstance(val, (int, long, float, complex)):
+		if isinstance(val, (int, float, complex)):
 			return val
 		# replace together standing abbreviations, example '1d12h' -> '1d 12h':
 		val = MyTime._str2sec_prep.sub(r" \1", val)
diff --git a/fail2ban/server/server.py b/fail2ban/server/server.py
index 159f6506..fc948e8c 100644
--- a/fail2ban/server/server.py
+++ b/fail2ban/server/server.py
@@ -97,7 +97,7 @@ class Server:
 
 	def start(self, sock, pidfile, force=False, observer=True, conf={}):
 		# First set the mask to only allow access to owner
-		os.umask(0077)
+		os.umask(0o077)
 		# Second daemonize before logging etc, because it will close all handles:
 		if self.__daemon: # pragma: no cover
 			logSys.info("Starting in daemon mode")
@@ -190,7 +190,7 @@ class Server:
 
 		# Restore default signal handlers:
 		if _thread_name() == '_MainThread':
-			for s, sh in self.__prev_signals.iteritems():
+			for s, sh in self.__prev_signals.items():
 				signal.signal(s, sh)
 
 		# Give observer a small chance to complete its work before exit
@@ -268,10 +268,10 @@ class Server:
 		logSys.info("Stopping all jails")
 		with self.__lock:
 			# 1st stop all jails (signal and stop actions/filter thread):
-			for name in self.__jails.keys():
+			for name in list(self.__jails.keys()):
 				self.delJail(name, stop=True, join=False)
 			# 2nd wait for end and delete jails:
-			for name in self.__jails.keys():
+			for name in list(self.__jails.keys()):
 				self.delJail(name, stop=False, join=True)
 
 	def reloadJails(self, name, opts, begin):
@@ -302,7 +302,7 @@ class Server:
 					if "--restart" in opts:
 						self.stopAllJail()
 				# first set all affected jail(s) to idle and reset filter regex and other lists/dicts:
-				for jn, jail in self.__jails.iteritems():
+				for jn, jail in self.__jails.items():
 					if name == '--all' or jn == name:
 						jail.idle = True
 						self.__reload_state[jn] = jail
@@ -313,7 +313,7 @@ class Server:
 			# end reload, all affected (or new) jails have already all new parameters (via stream) and (re)started:
 			with self.__lock:
 				deljails = []
-				for jn, jail in self.__jails.iteritems():
+				for jn, jail in self.__jails.items():
 					# still in reload state:
 					if jn in self.__reload_state:
 						# remove jails that are not reloaded (untouched, so not in new configuration)
@@ -513,7 +513,7 @@ class Server:
 			jails = [self.__jails[name]]
 		else:
 			# in all jails:
-			jails = self.__jails.values()
+			jails = list(self.__jails.values())
 		# unban given or all (if value is None):
 		cnt = 0
 		ifexists |= (name is None)
@@ -551,7 +551,7 @@ class Server:
 	def isAlive(self, jailnum=None):
 		if jailnum is not None and len(self.__jails) != jailnum:
 			return 0
-		for jail in self.__jails.values():
+		for jail in list(self.__jails.values()):
 			if not jail.isAlive():
 				return 0
 		return 1
@@ -759,7 +759,7 @@ class Server:
 			return "flushed"
 			
 	def setThreadOptions(self, value):
-		for o, v in value.iteritems():
+		for o, v in value.items():
 			if o == 'stacksize':
 				threading.stack_size(int(v)*1024)
 			else: # pragma: no cover
diff --git a/fail2ban/server/strptime.py b/fail2ban/server/strptime.py
index 498d284b..a5579fdc 100644
--- a/fail2ban/server/strptime.py
+++ b/fail2ban/server/strptime.py
@@ -79,7 +79,7 @@ timeRE['ExY'] = r"(?P<Y>%s\d)" % _getYearCentRE(cent=(0,3), distance=3)
 timeRE['Exy'] = r"(?P<y>%s\d)" % _getYearCentRE(cent=(2,3), distance=3)
 
 def getTimePatternRE():
-	keys = timeRE.keys()
+	keys = list(timeRE.keys())
 	patt = (r"%%(%%|%s|[%s])" % (
 		"|".join([k for k in keys if len(k) > 1]),
 		"".join([k for k in keys if len(k) == 1]),
@@ -134,7 +134,7 @@ def zone2offset(tz, dt):
 	"""
 	if isinstance(tz, int):
 		return tz
-	if isinstance(tz, basestring):
+	if isinstance(tz, str):
 		return validateTimeZone(tz)
 	tz, tzo = tz
 	if tzo is None or tzo == '': # without offset
@@ -171,7 +171,7 @@ def reGroupDictStrptime(found_dict, msec=False, default_tz=None):
 	year = month = day = hour = minute = tzoffset = \
 	weekday = julian = week_of_year = None
 	second = fraction = 0
-	for key, val in found_dict.iteritems():
+	for key, val in found_dict.items():
 		if val is None: continue
 		# Directives not explicitly handled below:
 		#   c, x, X
diff --git a/fail2ban/server/ticket.py b/fail2ban/server/ticket.py
index f67e0d23..f0b727c2 100644
--- a/fail2ban/server/ticket.py
+++ b/fail2ban/server/ticket.py
@@ -55,7 +55,7 @@ class Ticket(object):
 		self._time = time if time is not None else MyTime.time()
 		self._data = {'matches': matches or [], 'failures': 0}
 		if data is not None:
-			for k,v in data.iteritems():
+			for k,v in data.items():
 				if v is not None:
 					self._data[k] = v
 		if ticket:
@@ -89,7 +89,7 @@ class Ticket(object):
 
 	def setIP(self, value):
 		# guarantee using IPAddr instead of unicode, str for the IP
-		if isinstance(value, basestring):
+		if isinstance(value, str):
 			value = IPAddr(value)
 		self._ip = value
 	
@@ -181,7 +181,7 @@ class Ticket(object):
 		if len(args) == 1:
 			# todo: if support >= 2.7 only:
 			# self._data = {k:v for k,v in args[0].iteritems() if v is not None}
-			self._data = dict([(k,v) for k,v in args[0].iteritems() if v is not None])
+			self._data = dict([(k,v) for k,v in args[0].items() if v is not None])
 		# add k,v list or dict (merge):
 		elif len(args) == 2:
 			self._data.update((args,))
@@ -192,7 +192,7 @@ class Ticket(object):
 		# filter (delete) None values:
 		# todo: if support >= 2.7 only:
 		# self._data = {k:v for k,v in self._data.iteritems() if v is not None}
-		self._data = dict([(k,v) for k,v in self._data.iteritems() if v is not None])
+		self._data = dict([(k,v) for k,v in self._data.items() if v is not None])
 	
 	def getData(self, key=None, default=None):
 		# return whole data dict:
@@ -201,17 +201,17 @@ class Ticket(object):
 		# return default if not exists:
 		if not self._data:
 			return default
-		if not isinstance(key,(str,unicode,type(None),int,float,bool,complex)):
+		if not isinstance(key,(str,type(None),int,float,bool,complex)):
 			# return filtered by lambda/function:
 			if callable(key):
 				# todo: if support >= 2.7 only:
 				# return {k:v for k,v in self._data.iteritems() if key(k)}
-				return dict([(k,v) for k,v in self._data.iteritems() if key(k)])
+				return dict([(k,v) for k,v in self._data.items() if key(k)])
 			# return filtered by keys:
 			if hasattr(key, '__iter__'):
 				# todo: if support >= 2.7 only:
 				# return {k:v for k,v in self._data.iteritems() if k in key}
-				return dict([(k,v) for k,v in self._data.iteritems() if k in key])
+				return dict([(k,v) for k,v in self._data.items() if k in key])
 		# return single value of data:
 		return self._data.get(key, default)
 
diff --git a/fail2ban/server/transmitter.py b/fail2ban/server/transmitter.py
index f83e9d5f..80726cb4 100644
--- a/fail2ban/server/transmitter.py
+++ b/fail2ban/server/transmitter.py
@@ -475,7 +475,7 @@ class Transmitter:
 			opt = command[1][len("bantime."):]
 			return self.__server.getBanTimeExtra(name, opt)
 		elif command[1] == "actions":
-			return self.__server.getActions(name).keys()
+			return list(self.__server.getActions(name).keys())
 		elif command[1] == "action":
 			actionname = command[2]
 			actionvalue = command[3]
diff --git a/fail2ban/server/utils.py b/fail2ban/server/utils.py
index d4461a7d..13c24e76 100644
--- a/fail2ban/server/utils.py
+++ b/fail2ban/server/utils.py
@@ -57,7 +57,7 @@ _RETCODE_HINTS = {
 
 # Dictionary to lookup signal name from number
 signame = dict((num, name)
-	for name, num in signal.__dict__.iteritems() if name.startswith("SIG"))
+	for name, num in signal.__dict__.items() if name.startswith("SIG"))
 
 class Utils():
 	"""Utilities provide diverse static methods like executes OS shell commands, etc.
@@ -109,7 +109,7 @@ class Utils():
 								break
 					else: # pragma: 3.x no cover (dict is in 2.6 only)
 						remlst = []
-						for (ck, cv) in cache.iteritems():
+						for (ck, cv) in cache.items():
 							# if expired:
 							if cv[1] <= t:
 								remlst.append(ck)
@@ -152,7 +152,7 @@ class Utils():
 		if not isinstance(realCmd, list):
 			realCmd = [realCmd]
 		i = len(realCmd)-1
-		for k, v in varsDict.iteritems():
+		for k, v in varsDict.items():
 			varsStat += "%s=$%s " % (k, i)
 			realCmd.append(v)
 			i += 1
diff --git a/fail2ban/tests/action_d/test_badips.py b/fail2ban/tests/action_d/test_badips.py
index 013c0fdb..3c35e4d7 100644
--- a/fail2ban/tests/action_d/test_badips.py
+++ b/fail2ban/tests/action_d/test_badips.py
@@ -32,7 +32,7 @@ from ..utils import LogCaptureTestCase, CONFIG_DIR
 if sys.version_info >= (3, ): # pragma: 2.x no cover
 	from urllib.error import HTTPError, URLError
 else: # pragma: 3.x no cover
-	from urllib2 import HTTPError, URLError
+	from urllib.error import HTTPError, URLError
 
 def skip_if_not_available(f):
 	"""Helper to decorate tests to skip in case of timeout/http-errors like "502 bad gateway".
diff --git a/fail2ban/tests/actiontestcase.py b/fail2ban/tests/actiontestcase.py
index 1a00c040..ecd09246 100644
--- a/fail2ban/tests/actiontestcase.py
+++ b/fail2ban/tests/actiontestcase.py
@@ -244,14 +244,14 @@ class CommandActionTest(LogCaptureTestCase):
 		setattr(self.__action, 'ab', "<ac>")
 		setattr(self.__action, 'x?family=inet6', "")
 		# produce self-referencing properties except:
-		self.assertRaisesRegexp(ValueError, r"properties contain self referencing definitions",
+		self.assertRaisesRegex(ValueError, r"properties contain self referencing definitions",
 			lambda: self.__action.replaceTag("<a><b>", 
 				self.__action._properties, conditional="family=inet4")
 		)
 		# remore self-referencing in props:
 		delattr(self.__action, 'ac')
 		# produce self-referencing query except:
-		self.assertRaisesRegexp(ValueError, r"possible self referencing definitions in query",
+		self.assertRaisesRegex(ValueError, r"possible self referencing definitions in query",
 			lambda: self.__action.replaceTag("<x<x<x<x<x<x<x<x<x<x<x<x<x<x<x<x<x<x<x<x<x>>>>>>>>>>>>>>>>>>>>>", 
 				self.__action._properties, conditional="family=inet6")
 		)
diff --git a/fail2ban/tests/clientreadertestcase.py b/fail2ban/tests/clientreadertestcase.py
index 2c1d0a0e..aa7908c4 100644
--- a/fail2ban/tests/clientreadertestcase.py
+++ b/fail2ban/tests/clientreadertestcase.py
@@ -390,7 +390,7 @@ class JailReaderTest(LogCaptureTestCase):
 		# And multiple groups (`][` instead of `,`)
 		result = extractOptions(option.replace(',', ']['))
 		expected2 = (expected[0],
-		 dict((k, v.replace(',', '][')) for k, v in expected[1].iteritems())
+		 dict((k, v.replace(',', '][')) for k, v in expected[1].items())
 		)
 		self.assertEqual(expected2, result)
 
@@ -975,7 +975,7 @@ filter = testfilter1
 		self.assertEqual(add_actions[-1][-1], "{}")
 
 	def testLogPathFileFilterBackend(self):
-		self.assertRaisesRegexp(ValueError, r"Have not found any log file for .* jail", 
+		self.assertRaisesRegex(ValueError, r"Have not found any log file for .* jail", 
 			self._testLogPath, backend='polling')
 
 	def testLogPathSystemdBackend(self):
diff --git a/fail2ban/tests/databasetestcase.py b/fail2ban/tests/databasetestcase.py
index 9a5e9fa1..562461a6 100644
--- a/fail2ban/tests/databasetestcase.py
+++ b/fail2ban/tests/databasetestcase.py
@@ -67,7 +67,7 @@ class DatabaseTest(LogCaptureTestCase):
 
 	@property
 	def db(self):
-		if isinstance(self._db, basestring) and self._db == ':auto-create-in-memory:':
+		if isinstance(self._db, str) and self._db == ':auto-create-in-memory:':
 			self._db = getFail2BanDb(self.dbFilename)
 		return self._db
 	@db.setter
@@ -159,7 +159,7 @@ class DatabaseTest(LogCaptureTestCase):
 			self.db = Fail2BanDb(self.dbFilename)
 			self.assertEqual(self.db.getJailNames(), set(['DummyJail #29162448 with 0 tickets']))
 			self.assertEqual(self.db.getLogPaths(), set(['/tmp/Fail2BanDb_pUlZJh.log']))
-			ticket = FailTicket("127.0.0.1", 1388009242.26, [u"abc\n"])
+			ticket = FailTicket("127.0.0.1", 1388009242.26, ["abc\n"])
 			self.assertEqual(self.db.getBans()[0], ticket)
 
 			self.assertEqual(self.db.updateDb(Fail2BanDb.__version__), Fail2BanDb.__version__)
@@ -185,9 +185,9 @@ class DatabaseTest(LogCaptureTestCase):
 		self.assertEqual(len(bans), 2)
 		# compare first ticket completely:
 		ticket = FailTicket("1.2.3.7", 1417595494, [
-			u'Dec  3 09:31:08 f2btest test:auth[27658]: pam_unix(test:auth): authentication failure; logname= uid=0 euid=0 tty=test ruser= rhost=1.2.3.7',
-			u'Dec  3 09:31:32 f2btest test:auth[27671]: pam_unix(test:auth): authentication failure; logname= uid=0 euid=0 tty=test ruser= rhost=1.2.3.7',
-			u'Dec  3 09:31:34 f2btest test:auth[27673]: pam_unix(test:auth): authentication failure; logname= uid=0 euid=0 tty=test ruser= rhost=1.2.3.7'
+			'Dec  3 09:31:08 f2btest test:auth[27658]: pam_unix(test:auth): authentication failure; logname= uid=0 euid=0 tty=test ruser= rhost=1.2.3.7',
+			'Dec  3 09:31:32 f2btest test:auth[27671]: pam_unix(test:auth): authentication failure; logname= uid=0 euid=0 tty=test ruser= rhost=1.2.3.7',
+			'Dec  3 09:31:34 f2btest test:auth[27673]: pam_unix(test:auth): authentication failure; logname= uid=0 euid=0 tty=test ruser= rhost=1.2.3.7'
 		])
 		ticket.setAttempt(3)
 		self.assertEqual(bans[0], ticket)
@@ -286,11 +286,11 @@ class DatabaseTest(LogCaptureTestCase):
 		# invalid + valid, invalid + valid unicode, invalid + valid dual converted (like in filter:readline by fallback) ...
 		tickets = [
 		  FailTicket("127.0.0.1", 0, ['user "test"', 'user "\xd1\xe2\xe5\xf2\xe0"', 'user "\xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f"']),
-		  FailTicket("127.0.0.2", 0, ['user "test"', u'user "\xd1\xe2\xe5\xf2\xe0"', u'user "\xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f"']),
+		  FailTicket("127.0.0.2", 0, ['user "test"', 'user "\xd1\xe2\xe5\xf2\xe0"', 'user "\xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f"']),
 		  FailTicket("127.0.0.3", 0, ['user "test"', b'user "\xd1\xe2\xe5\xf2\xe0"', b'user "\xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f"']),
-		  FailTicket("127.0.0.4", 0, ['user "test"', 'user "\xd1\xe2\xe5\xf2\xe0"', u'user "\xe4\xf6\xfc\xdf"']),
+		  FailTicket("127.0.0.4", 0, ['user "test"', 'user "\xd1\xe2\xe5\xf2\xe0"', 'user "\xe4\xf6\xfc\xdf"']),
 		  FailTicket("127.0.0.5", 0, ['user "test"', 'unterminated \xcf']),
-		  FailTicket("127.0.0.6", 0, ['user "test"', u'unterminated \xcf']),
+		  FailTicket("127.0.0.6", 0, ['user "test"', 'unterminated \xcf']),
 		  FailTicket("127.0.0.7", 0, ['user "test"', b'unterminated \xcf'])
 		]
 		for ticket in tickets:
diff --git a/fail2ban/tests/datedetectortestcase.py b/fail2ban/tests/datedetectortestcase.py
index 458f76ef..49ada60d 100644
--- a/fail2ban/tests/datedetectortestcase.py
+++ b/fail2ban/tests/datedetectortestcase.py
@@ -279,7 +279,7 @@ class DateDetectorTest(LogCaptureTestCase):
 		self.assertEqual(logTime, mu)
 		self.assertEqual(logMatch.group(1), '2012/10/11 02:37:17')
 		# confuse it with year being at the end
-		for i in xrange(10):
+		for i in range(10):
 			( logTime, logMatch ) =	self.datedetector.getTime('11/10/2012 02:37:17 [error] 18434#0')
 			self.assertEqual(logTime, mu)
 			self.assertEqual(logMatch.group(1), '11/10/2012 02:37:17')
@@ -505,7 +505,7 @@ class CustomDateFormatsTest(unittest.TestCase):
 			date = dd.getTime(line)
 			if matched:
 				self.assertTrue(date)
-				if isinstance(matched, basestring):
+				if isinstance(matched, str):
 					self.assertEqual(matched, date[1].group(1))
 				else:
 					self.assertEqual(matched, date[0])
@@ -537,7 +537,7 @@ class CustomDateFormatsTest(unittest.TestCase):
 			date = dd.getTime(line)
 			if matched:
 				self.assertTrue(date)
-				if isinstance(matched, basestring): # pragma: no cover
+				if isinstance(matched, str): # pragma: no cover
 					self.assertEqual(matched, date[1].group(1))
 				else:
 					self.assertEqual(matched, date[0])
diff --git a/fail2ban/tests/fail2banclienttestcase.py b/fail2ban/tests/fail2banclienttestcase.py
index 95f73ed3..bba354fa 100644
--- a/fail2ban/tests/fail2banclienttestcase.py
+++ b/fail2ban/tests/fail2banclienttestcase.py
@@ -367,10 +367,10 @@ def with_foreground_server_thread(startextra={}):
 				# several commands to server in body of decorated function:
 				return f(self, tmp, startparams, *args, **kwargs)
 			except Exception as e: # pragma: no cover
-				print('=== Catch an exception: %s' % e)
+				print(('=== Catch an exception: %s' % e))
 				log = self.getLog()
 				if log:
-					print('=== Error of server, log: ===\n%s===' % log)
+					print(('=== Error of server, log: ===\n%s===' % log))
 					self.pruneLog()
 				raise
 			finally:
@@ -440,7 +440,7 @@ class Fail2banClientServerBase(LogCaptureTestCase):
 					)
 		except:  # pragma: no cover
 			if _inherited_log(startparams):
-				print('=== Error by wait fot server, log: ===\n%s===' % self.getLog())
+				print(('=== Error by wait fot server, log: ===\n%s===' % self.getLog()))
 				self.pruneLog()
 			log = pjoin(tmp, "f2b.log")
 			if isfile(log):
@@ -1610,6 +1610,6 @@ class Fail2banServerTest(Fail2banClientServerBase):
 			self.stopAndWaitForServerEnd(SUCCESS)
 
 		def testServerStartStop(self):
-			for i in xrange(2000):
+			for i in range(2000):
 				self._testServerStartStop()
 
diff --git a/fail2ban/tests/failmanagertestcase.py b/fail2ban/tests/failmanagertestcase.py
index a5425286..2a94cc82 100644
--- a/fail2ban/tests/failmanagertestcase.py
+++ b/fail2ban/tests/failmanagertestcase.py
@@ -45,11 +45,11 @@ class AddFailure(unittest.TestCase):
 		super(AddFailure, self).tearDown()
 		
 	def _addDefItems(self):
-		self.__items = [[u'193.168.0.128', 1167605999.0],
-					    [u'193.168.0.128', 1167605999.0],
-					    [u'193.168.0.128', 1167605999.0],
-					    [u'193.168.0.128', 1167605999.0],
-					    [u'193.168.0.128', 1167605999.0],
+		self.__items = [['193.168.0.128', 1167605999.0],
+					    ['193.168.0.128', 1167605999.0],
+					    ['193.168.0.128', 1167605999.0],
+					    ['193.168.0.128', 1167605999.0],
+					    ['193.168.0.128', 1167605999.0],
 					    ['87.142.124.10', 1167605999.0],
 					    ['87.142.124.10', 1167605999.0],
 					    ['87.142.124.10', 1167605999.0],
diff --git a/fail2ban/tests/files/config/apache-auth/digest.py b/fail2ban/tests/files/config/apache-auth/digest.py
index 03588594..e2297ab3 100755
--- a/fail2ban/tests/files/config/apache-auth/digest.py
+++ b/fail2ban/tests/files/config/apache-auth/digest.py
@@ -41,7 +41,7 @@ def auth(v):
         response="%s"
     """ % ( username, algorithm, realm, url, nonce, qop, response )
 #        opaque="%s",
-    print(p.method, p.url, p.headers)
+    print((p.method, p.url, p.headers))
     s =  requests.Session()
     return s.send(p)
 
@@ -76,18 +76,18 @@ r = auth(v)
 
 # [Sun Jul 28 21:41:20 2013] [error] [client 127.0.0.1] Digest: unknown algorithm `super funky chicken' received: /digest/
 
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
 v['algorithm'] = algorithm
 
 
 r = auth(v)
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
 
 nonce = v['nonce']
 v['nonce']=v['nonce'][5:-5]
 
 r = auth(v)
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
 
 # [Sun Jul 28 21:05:31.178340 2013] [auth_digest:error] [pid 24224:tid 139895539455744] [client 127.0.0.1:56906] AH01793: invalid qop `auth' received: /digest/qop_none/
 
@@ -95,7 +95,7 @@ print(r.status_code,r.headers, r.text)
 v['nonce']=nonce[0:11] + 'ZZZ' + nonce[14:]
 
 r = auth(v)
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
 
 #[Sun Jul 28 21:18:11.769228 2013] [auth_digest:error] [pid 24752:tid 139895505884928] [client 127.0.0.1:56964] AH01776: invalid nonce b9YAiJDiBAZZZ1b1abe02d20063ea3b16b544ea1b0d981c1bafe received - hash is not d42d824dee7aaf50c3ba0a7c6290bd453e3dd35b
 
@@ -107,7 +107,7 @@ import time
 time.sleep(1)
 
 r = auth(v)
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
 
 # Obtained by putting the following code in modules/aaa/mod_auth_digest.c
 # in the function initialize_secret
@@ -137,7 +137,7 @@ s = sha.sha(apachesecret)
 
 v=preauth()
 
-print(v['nonce'])
+print((v['nonce']))
 realm = v['Digest realm'][1:-1]
 
 (t,) = struct.unpack('l',base64.b64decode(v['nonce'][1:13]))
@@ -156,13 +156,13 @@ print(v)
 
 r = auth(v)
 #[Mon Jul 29 02:12:55.539813 2013] [auth_digest:error] [pid 9647:tid 139895522670336] [client 127.0.0.1:58474] AH01777: invalid nonce 59QJppTiBAA=b08983fd166ade9840407df1b0f75b9e6e07d88d received - user attempted time travel
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
 
 url='/digest_onetime/'
 v=preauth()
 
 # Need opaque header handling in auth
 r = auth(v)
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
 r = auth(v)
-print(r.status_code,r.headers, r.text)
+print((r.status_code,r.headers, r.text))
diff --git a/fail2ban/tests/filtertestcase.py b/fail2ban/tests/filtertestcase.py
index 35785a58..8eeb6902 100644
--- a/fail2ban/tests/filtertestcase.py
+++ b/fail2ban/tests/filtertestcase.py
@@ -22,7 +22,7 @@
 __copyright__ = "Copyright (c) 2004 Cyril Jaquier; 2012 Yaroslav Halchenko"
 __license__ = "GPL"
 
-from __builtin__ import open as fopen
+from builtins import open as fopen
 import unittest
 import os
 import re
@@ -204,7 +204,7 @@ def _copy_lines_between_files(in_, fout, n=None, skip=0, mode='a', terminal_line
 	else:
 		fin = in_
 	# Skip
-	for i in xrange(skip):
+	for i in range(skip):
 		fin.readline()
 	# Read
 	i = 0
@@ -244,7 +244,7 @@ def _copy_lines_to_journal(in_, fields={},n=None, skip=0, terminal_line=""): # p
 	# Required for filtering
 	fields.update(TEST_JOURNAL_FIELDS)
 	# Skip
-	for i in xrange(skip):
+	for i in range(skip):
 		fin.readline()
 	# Read/Write
 	i = 0
@@ -306,18 +306,18 @@ class BasicFilter(unittest.TestCase):
 	def testTest_tm(self):
 		unittest.F2B.SkipIfFast()
 		## test function "_tm" works correct (returns the same as slow strftime):
-		for i in xrange(1417512352, (1417512352 // 3600 + 3) * 3600):
+		for i in range(1417512352, (1417512352 // 3600 + 3) * 3600):
 			tm = MyTime.time2str(i)
 			if _tm(i) != tm: # pragma: no cover - never reachable
 				self.assertEqual((_tm(i), i), (tm, i))
 
 	def testWrongCharInTupleLine(self):
 		## line tuple has different types (ascii after ascii / unicode):
-		for a1 in ('', u'', b''):
-			for a2 in ('2016-09-05T20:18:56', u'2016-09-05T20:18:56', b'2016-09-05T20:18:56'):
+		for a1 in ('', '', b''):
+			for a2 in ('2016-09-05T20:18:56', '2016-09-05T20:18:56', b'2016-09-05T20:18:56'):
 				for a3 in (
 					'Fail for "g\xc3\xb6ran" from 192.0.2.1', 
-					u'Fail for "g\xc3\xb6ran" from 192.0.2.1',
+					'Fail for "g\xc3\xb6ran" from 192.0.2.1',
 					b'Fail for "g\xc3\xb6ran" from 192.0.2.1'
 				):
 					# join should work if all arguments have the same type:
@@ -435,7 +435,7 @@ class IgnoreIP(LogCaptureTestCase):
 
 	def testAddAttempt(self):
 		self.filter.setMaxRetry(3)
-		for i in xrange(1, 1+3):
+		for i in range(1, 1+3):
 			self.filter.addAttempt('192.0.2.1')
 			self.assertLogged('Attempt 192.0.2.1', '192.0.2.1:%d' % i, all=True, wait=True)
 		self.jail.actions._Actions__checkBan()
@@ -472,7 +472,7 @@ class IgnoreIP(LogCaptureTestCase):
 		# like both test-cases above, just cached (so once per key)...
 		self.filter.ignoreCache = {"key":"<ip>"}
 		self.filter.ignoreCommand = 'if [ "<ip>" = "10.0.0.1" ]; then exit 0; fi; exit 1'
-		for i in xrange(5):
+		for i in range(5):
 			self.pruneLog()
 			self.assertTrue(self.filter.inIgnoreIPList("10.0.0.1"))
 			self.assertFalse(self.filter.inIgnoreIPList("10.0.0.0"))
@@ -483,7 +483,7 @@ class IgnoreIP(LogCaptureTestCase):
 		# by host of IP:
 		self.filter.ignoreCache = {"key":"<ip-host>"}
 		self.filter.ignoreCommand = 'if [ "<ip-host>" = "test-host" ]; then exit 0; fi; exit 1'
-		for i in xrange(5):
+		for i in range(5):
 			self.pruneLog()
 			self.assertTrue(self.filter.inIgnoreIPList(FailTicket("2001:db8::1")))
 			self.assertFalse(self.filter.inIgnoreIPList(FailTicket("2001:db8::ffff")))
@@ -495,7 +495,7 @@ class IgnoreIP(LogCaptureTestCase):
 		self.filter.ignoreCache = {"key":"<F-USER>", "max-count":"10", "max-time":"1h"}
 		self.assertEqual(self.filter.ignoreCache, ["<F-USER>", 10, 60*60])
 		self.filter.ignoreCommand = 'if [ "<F-USER>" = "tester" ]; then exit 0; fi; exit 1'
-		for i in xrange(5):
+		for i in range(5):
 			self.pruneLog()
 			self.assertTrue(self.filter.inIgnoreIPList(FailTicket("tester", data={'user': 'tester'})))
 			self.assertFalse(self.filter.inIgnoreIPList(FailTicket("root", data={'user': 'root'})))
@@ -644,7 +644,7 @@ class LogFileFilterPoll(unittest.TestCase):
 			fc = FileContainer(fname, self.filter.getLogEncoding())
 			fc.open()
 			# no time - nothing should be found :
-			for i in xrange(10):
+			for i in range(10):
 				f.write("[sshd] error: PAM: failure len 1\n")
 				f.flush()
 				fc.setPos(0); self.filter.seekToTime(fc, time)
@@ -718,14 +718,14 @@ class LogFileFilterPoll(unittest.TestCase):
 			# variable length of file (ca 45K or 450K before and hereafter):
 			# write lines with smaller as search time:
 			t = time - count - 1
-			for i in xrange(count):
+			for i in range(count):
 				f.write("%s [sshd] error: PAM: failure\n" % _tm(t))
 				t += 1
 			f.flush()
 			fc.setPos(0); self.filter.seekToTime(fc, time)
 			self.assertEqual(fc.getPos(), 47*count)
 			# write lines with exact search time:
-			for i in xrange(10):
+			for i in range(10):
 				f.write("%s [sshd] error: PAM: failure\n" % _tm(time))
 			f.flush()
 			fc.setPos(0); self.filter.seekToTime(fc, time)
@@ -734,8 +734,8 @@ class LogFileFilterPoll(unittest.TestCase):
 			self.assertEqual(fc.getPos(), 47*count)
 			# write lines with greater as search time:
 			t = time+1
-			for i in xrange(count//500):
-				for j in xrange(500):
+			for i in range(count//500):
+				for j in range(500):
 					f.write("%s [sshd] error: PAM: failure\n" % _tm(t))
 					t += 1
 				f.flush()
@@ -1488,10 +1488,10 @@ def get_monitor_failures_journal_testcase(Filter_): # pragma: systemd no cover
 			# Add direct utf, unicode, blob:
 			for l in (
 		    "error: PAM: Authentication failure for \xe4\xf6\xfc\xdf from 192.0.2.1",
-		   u"error: PAM: Authentication failure for \xe4\xf6\xfc\xdf from 192.0.2.1",
+		   "error: PAM: Authentication failure for \xe4\xf6\xfc\xdf from 192.0.2.1",
 		   b"error: PAM: Authentication failure for \xe4\xf6\xfc\xdf from 192.0.2.1".decode('utf-8', 'replace'),
 		    "error: PAM: Authentication failure for \xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f from 192.0.2.2",
-		   u"error: PAM: Authentication failure for \xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f from 192.0.2.2",
+		   "error: PAM: Authentication failure for \xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f from 192.0.2.2",
 		   b"error: PAM: Authentication failure for \xc3\xa4\xc3\xb6\xc3\xbc\xc3\x9f from 192.0.2.2".decode('utf-8', 'replace')
 			):
 				fields = self.journal_fields
@@ -1520,7 +1520,7 @@ class GetFailures(LogCaptureTestCase):
 
 	# so that they could be reused by other tests
 	FAILURES_01 = ('193.168.0.128', 3, 1124013599.0,
-				  [u'Aug 14 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128']*3)
+				  ['Aug 14 11:59:59 [sshd] error: PAM: Authentication failure for kevin from 193.168.0.128']*3)
 
 	def setUp(self):
 		"""Call before every test case."""
@@ -1595,8 +1595,8 @@ class GetFailures(LogCaptureTestCase):
 
 	def testGetFailures02(self):
 		output = ('141.3.81.106', 4, 1124013539.0,
-				  [u'Aug 14 11:%d:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2'
-				   % m for m in 53, 54, 57, 58])
+				  ['Aug 14 11:%d:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:141.3.81.106 port 51332 ssh2'
+				   % m for m in (53, 54, 57, 58)])
 
 		self.filter.addLogPath(GetFailures.FILENAME_02, autoSeek=0)
 		self.filter.addFailRegex(r"Failed .* from <HOST>")
@@ -1691,17 +1691,17 @@ class GetFailures(LogCaptureTestCase):
 		# We should still catch failures with usedns = no ;-)
 		output_yes = (
 			('93.184.216.34', 2, 1124013539.0,
-			  [u'Aug 14 11:54:59 i60p295 sshd[12365]: Failed publickey for roehl from example.com port 51332 ssh2',
-			   u'Aug 14 11:58:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:93.184.216.34 port 51332 ssh2']
+			  ['Aug 14 11:54:59 i60p295 sshd[12365]: Failed publickey for roehl from example.com port 51332 ssh2',
+			   'Aug 14 11:58:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:93.184.216.34 port 51332 ssh2']
 			),
 			('2606:2800:220:1:248:1893:25c8:1946', 1, 1124013299.0,
-			  [u'Aug 14 11:54:59 i60p295 sshd[12365]: Failed publickey for roehl from example.com port 51332 ssh2']
+			  ['Aug 14 11:54:59 i60p295 sshd[12365]: Failed publickey for roehl from example.com port 51332 ssh2']
 			),
 		)
 
 		output_no = (
 			('93.184.216.34', 1, 1124013539.0,
-			  [u'Aug 14 11:58:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:93.184.216.34 port 51332 ssh2']
+			  ['Aug 14 11:58:59 i60p295 sshd[12365]: Failed publickey for roehl from ::ffff:93.184.216.34 port 51332 ssh2']
 			)
 		)
 
@@ -1807,9 +1807,9 @@ class DNSUtilsTests(unittest.TestCase):
 		self.assertTrue(c.get('a') is None)
 		self.assertEqual(c.get('a', 'test'), 'test')
 		# exact 5 elements :
-		for i in xrange(5):
+		for i in range(5):
 			c.set(i, i)
-		for i in xrange(5):
+		for i in range(5):
 			self.assertEqual(c.get(i), i)
 		# remove unavailable key:
 		c.unset('a'); c.unset('a')
@@ -1817,30 +1817,30 @@ class DNSUtilsTests(unittest.TestCase):
 	def testCacheMaxSize(self):
 		c = Utils.Cache(maxCount=5, maxTime=60)
 		# exact 5 elements :
-		for i in xrange(5):
+		for i in range(5):
 			c.set(i, i)
-		self.assertEqual([c.get(i) for i in xrange(5)], [i for i in xrange(5)])
-		self.assertNotIn(-1, (c.get(i, -1) for i in xrange(5)))
+		self.assertEqual([c.get(i) for i in range(5)], [i for i in range(5)])
+		self.assertNotIn(-1, (c.get(i, -1) for i in range(5)))
 		# add one - too many:
 		c.set(10, i)
 		# one element should be removed :
-		self.assertIn(-1, (c.get(i, -1) for i in xrange(5)))
+		self.assertIn(-1, (c.get(i, -1) for i in range(5)))
 		# test max size (not expired):
-		for i in xrange(10):
+		for i in range(10):
 			c.set(i, 1)
 		self.assertEqual(len(c), 5)
 
 	def testCacheMaxTime(self):
 		# test max time (expired, timeout reached) :
 		c = Utils.Cache(maxCount=5, maxTime=0.0005)
-		for i in xrange(10):
+		for i in range(10):
 			c.set(i, 1)
 		st = time.time()
 		self.assertTrue(Utils.wait_for(lambda: time.time() >= st + 0.0005, 1))
 		# we have still 5 elements (or fewer if too slow test mashine):
 		self.assertTrue(len(c) <= 5)
 		# but all that are expiered also:
-		for i in xrange(10):
+		for i in range(10):
 			self.assertTrue(c.get(i) is None)
 		# here the whole cache should be empty:
 		self.assertEqual(len(c), 0)
@@ -1861,7 +1861,7 @@ class DNSUtilsTests(unittest.TestCase):
 					c = count
 					while c:
 						c -= 1
-						s = xrange(0, 256, 1) if forw else xrange(255, -1, -1)
+						s = range(0, 256, 1) if forw else range(255, -1, -1)
 						if random: shuffle([i for i in s])
 						for i in s:
 							IPAddr('192.0.2.'+str(i), IPAddr.FAM_IPv4)
@@ -1983,15 +1983,15 @@ class DNSUtilsNetworkTests(unittest.TestCase):
 
 	def testAddr2bin(self):
 		res = IPAddr('10.0.0.0')
-		self.assertEqual(res.addr, 167772160L)
+		self.assertEqual(res.addr, 167772160)
 		res = IPAddr('10.0.0.0', cidr=None)
-		self.assertEqual(res.addr, 167772160L)
-		res = IPAddr('10.0.0.0', cidr=32L)
-		self.assertEqual(res.addr, 167772160L)
-		res = IPAddr('10.0.0.1', cidr=32L)
-		self.assertEqual(res.addr, 167772161L)
-		res = IPAddr('10.0.0.1', cidr=31L)
-		self.assertEqual(res.addr, 167772160L)
+		self.assertEqual(res.addr, 167772160)
+		res = IPAddr('10.0.0.0', cidr=32)
+		self.assertEqual(res.addr, 167772160)
+		res = IPAddr('10.0.0.1', cidr=32)
+		self.assertEqual(res.addr, 167772161)
+		res = IPAddr('10.0.0.1', cidr=31)
+		self.assertEqual(res.addr, 167772160)
 
 		self.assertEqual(IPAddr('10.0.0.0').hexdump, '0a000000')
 		self.assertEqual(IPAddr('1::2').hexdump, '00010000000000000000000000000002')
@@ -2067,9 +2067,9 @@ class DNSUtilsNetworkTests(unittest.TestCase):
 			'93.184.216.34': 'ip4-test', 
 			'2606:2800:220:1:248:1893:25c8:1946': 'ip6-test'
 		}
-		d2 = dict([(IPAddr(k), v) for k, v in d.iteritems()])
-		self.assertTrue(isinstance(d.keys()[0], basestring))
-		self.assertTrue(isinstance(d2.keys()[0], IPAddr))
+		d2 = dict([(IPAddr(k), v) for k, v in d.items()])
+		self.assertTrue(isinstance(list(d.keys())[0], str))
+		self.assertTrue(isinstance(list(d2.keys())[0], IPAddr))
 		self.assertEqual(d.get(ip4[2], ''), 'ip4-test')
 		self.assertEqual(d.get(ip6[2], ''), 'ip6-test')
 		self.assertEqual(d2.get(str(ip4[2]), ''), 'ip4-test')
diff --git a/fail2ban/tests/misctestcase.py b/fail2ban/tests/misctestcase.py
index 9b986f53..94f7a8de 100644
--- a/fail2ban/tests/misctestcase.py
+++ b/fail2ban/tests/misctestcase.py
@@ -29,9 +29,9 @@ import tempfile
 import shutil
 import fnmatch
 from glob import glob
-from StringIO import StringIO
+from io import StringIO
 
-from utils import LogCaptureTestCase, logSys as DefLogSys
+from .utils import LogCaptureTestCase, logSys as DefLogSys
 
 from ..helpers import formatExceptionInfo, mbasename, TraceBack, FormatterWithTraceBack, getLogger, \
 	splitwords, uni_decode, uni_string
@@ -67,7 +67,7 @@ class HelpersTest(unittest.TestCase):
 		self.assertEqual(splitwords(' 1\n  2'), ['1', '2'])
 		self.assertEqual(splitwords(' 1\n  2, 3'), ['1', '2', '3'])
 		# string as unicode:
-		self.assertEqual(splitwords(u' 1\n  2, 3'), ['1', '2', '3'])
+		self.assertEqual(splitwords(' 1\n  2, 3'), ['1', '2', '3'])
 
 
 if sys.version_info >= (2,7):
@@ -197,11 +197,11 @@ class TestsUtilsTest(LogCaptureTestCase):
 
 	def testUniConverters(self):
 		self.assertRaises(Exception, uni_decode, 
-			(b'test' if sys.version_info >= (3,) else u'test'), 'f2b-test::non-existing-encoding')
-		uni_decode((b'test\xcf' if sys.version_info >= (3,) else u'test\xcf'))
+			(b'test' if sys.version_info >= (3,) else 'test'), 'f2b-test::non-existing-encoding')
+		uni_decode((b'test\xcf' if sys.version_info >= (3,) else 'test\xcf'))
 		uni_string(b'test\xcf')
 		uni_string('test\xcf')
-		uni_string(u'test\xcf')
+		uni_string('test\xcf')
 
 	def testSafeLogging(self):
 		# logging should be exception-safe, to avoid possible errors (concat, str. conversion, representation failures, etc)
@@ -213,7 +213,7 @@ class TestsUtilsTest(LogCaptureTestCase):
 				if self.err:
 					raise Exception('no represenation for test!')
 				else:
-					return u'conv-error (\xf2\xf0\xe5\xf2\xe8\xe9), unterminated utf \xcf'
+					return 'conv-error (\xf2\xf0\xe5\xf2\xe8\xe9), unterminated utf \xcf'
 		test = Test()
 		logSys.log(logging.NOTICE, "test 1a: %r", test)
 		self.assertLogged("Traceback", "no represenation for test!")
@@ -261,7 +261,7 @@ class TestsUtilsTest(LogCaptureTestCase):
 					func_raise()
 
 			try:
-				print deep_function(3)
+				print(deep_function(3))
 			except ValueError:
 				s = tb()
 
@@ -278,7 +278,7 @@ class TestsUtilsTest(LogCaptureTestCase):
 			self.assertIn(':', s)
 
 	def _testAssertionErrorRE(self, regexp, fun, *args, **kwargs):
-		self.assertRaisesRegexp(AssertionError, regexp, fun, *args, **kwargs)
+		self.assertRaisesRegex(AssertionError, regexp, fun, *args, **kwargs)
 	
 	def testExtendedAssertRaisesRE(self):
 		## test _testAssertionErrorRE several fail cases:
@@ -316,13 +316,13 @@ class TestsUtilsTest(LogCaptureTestCase):
 		self._testAssertionErrorRE(r"'a' unexpectedly found in 'cba'",
 			self.assertNotIn, 'a', 'cba')
 		self._testAssertionErrorRE(r"1 unexpectedly found in \[0, 1, 2\]",
-			self.assertNotIn, 1, xrange(3))
+			self.assertNotIn, 1, range(3))
 		self._testAssertionErrorRE(r"'A' unexpectedly found in \['C', 'A'\]",
 			self.assertNotIn, 'A', (c.upper() for c in 'cba' if c != 'b'))
 		self._testAssertionErrorRE(r"'a' was not found in 'xyz'",
 			self.assertIn, 'a', 'xyz')
 		self._testAssertionErrorRE(r"5 was not found in \[0, 1, 2\]",
-			self.assertIn, 5, xrange(3))
+			self.assertIn, 5, range(3))
 		self._testAssertionErrorRE(r"'A' was not found in \['C', 'B'\]",
 			self.assertIn, 'A', (c.upper() for c in 'cba' if c != 'a'))
 		## assertLogged, assertNotLogged positive case:
diff --git a/fail2ban/tests/observertestcase.py b/fail2ban/tests/observertestcase.py
index 8e944454..ed520286 100644
--- a/fail2ban/tests/observertestcase.py
+++ b/fail2ban/tests/observertestcase.py
@@ -69,7 +69,7 @@ class BanTimeIncr(LogCaptureTestCase):
 		a.setBanTimeExtra('multipliers', multipliers)
 		# test algorithm and max time 24 hours :
 		self.assertEqual(
-			[a.calcBanTime(600, i) for i in xrange(1, 11)],
+			[a.calcBanTime(600, i) for i in range(1, 11)],
 			[1200, 2400, 4800, 9600, 19200, 38400, 76800, 86400, 86400, 86400]
 		)
 		# with extra large max time (30 days):
@@ -81,38 +81,38 @@ class BanTimeIncr(LogCaptureTestCase):
 			if multcnt < 11:
 				arr = arr[0:multcnt-1] + ([arr[multcnt-2]] * (11-multcnt))
 		self.assertEqual(
-			[a.calcBanTime(600, i) for i in xrange(1, 11)],
+			[a.calcBanTime(600, i) for i in range(1, 11)],
 			arr
 		)
 		a.setBanTimeExtra('maxtime', '1d')
 		# change factor :
 		a.setBanTimeExtra('factor', '2');
 		self.assertEqual(
-			[a.calcBanTime(600, i) for i in xrange(1, 11)],
+			[a.calcBanTime(600, i) for i in range(1, 11)],
 			[2400, 4800, 9600, 19200, 38400, 76800, 86400, 86400, 86400, 86400]
 		)
 		# factor is float :
 		a.setBanTimeExtra('factor', '1.33');
 		self.assertEqual(
-			[int(a.calcBanTime(600, i)) for i in xrange(1, 11)],
+			[int(a.calcBanTime(600, i)) for i in range(1, 11)],
 			[1596, 3192, 6384, 12768, 25536, 51072, 86400, 86400, 86400, 86400]
 		)
 		a.setBanTimeExtra('factor', None);
 		# change max time :
 		a.setBanTimeExtra('maxtime', '12h')
 		self.assertEqual(
-			[a.calcBanTime(600, i) for i in xrange(1, 11)],
+			[a.calcBanTime(600, i) for i in range(1, 11)],
 			[1200, 2400, 4800, 9600, 19200, 38400, 43200, 43200, 43200, 43200]
 		)
 		a.setBanTimeExtra('maxtime', '24h')
 		## test randomization - not possibe all 10 times we have random = 0:
 		a.setBanTimeExtra('rndtime', '5m')
 		self.assertTrue(
-			False in [1200 in [a.calcBanTime(600, 1) for i in xrange(10)] for c in xrange(10)]
+			False in [1200 in [a.calcBanTime(600, 1) for i in range(10)] for c in range(10)]
 		)
 		a.setBanTimeExtra('rndtime', None)
 		self.assertFalse(
-			False in [1200 in [a.calcBanTime(600, 1) for i in xrange(10)] for c in xrange(10)]
+			False in [1200 in [a.calcBanTime(600, 1) for i in range(10)] for c in range(10)]
 		)
 		# restore default:
 		a.setBanTimeExtra('multipliers', None)
@@ -124,7 +124,7 @@ class BanTimeIncr(LogCaptureTestCase):
 		# this multipliers has the same values as default formula, we test stop growing after count 9:
 		self.testDefault('1 2 4 8 16 32 64 128 256')
 		# this multipliers has exactly the same values as default formula, test endless growing (stops by count 31 only):
-		self.testDefault(' '.join([str(1<<i) for i in xrange(31)]))
+		self.testDefault(' '.join([str(1<<i) for i in range(31)]))
 
 	def testFormula(self):
 		a = self.__jail;
@@ -136,38 +136,38 @@ class BanTimeIncr(LogCaptureTestCase):
 		a.setBanTimeExtra('multipliers', None)
 		# test algorithm and max time 24 hours :
 		self.assertEqual(
-			[int(a.calcBanTime(600, i)) for i in xrange(1, 11)],
+			[int(a.calcBanTime(600, i)) for i in range(1, 11)],
 			[1200, 2400, 4800, 9600, 19200, 38400, 76800, 86400, 86400, 86400]
 		)
 		# with extra large max time (30 days):
 		a.setBanTimeExtra('maxtime', '30d')
 		self.assertEqual(
-			[int(a.calcBanTime(600, i)) for i in xrange(1, 11)],
+			[int(a.calcBanTime(600, i)) for i in range(1, 11)],
 			[1200, 2400, 4800, 9600, 19200, 38400, 76800, 153601, 307203, 614407]
 		)
 		a.setBanTimeExtra('maxtime', '24h')
 		# change factor :
 		a.setBanTimeExtra('factor', '1');
 		self.assertEqual(
-			[int(a.calcBanTime(600, i)) for i in xrange(1, 11)],
+			[int(a.calcBanTime(600, i)) for i in range(1, 11)],
 			[1630, 4433, 12051, 32758, 86400, 86400, 86400, 86400, 86400, 86400]
 		)
 		a.setBanTimeExtra('factor', '2.0 / 2.885385')
 		# change max time :
 		a.setBanTimeExtra('maxtime', '12h')
 		self.assertEqual(
-			[int(a.calcBanTime(600, i)) for i in xrange(1, 11)],
+			[int(a.calcBanTime(600, i)) for i in range(1, 11)],
 			[1200, 2400, 4800, 9600, 19200, 38400, 43200, 43200, 43200, 43200]
 		)
 		a.setBanTimeExtra('maxtime', '24h')
 		## test randomization - not possibe all 10 times we have random = 0:
 		a.setBanTimeExtra('rndtime', '5m')
 		self.assertTrue(
-			False in [1200 in [int(a.calcBanTime(600, 1)) for i in xrange(10)] for c in xrange(10)]
+			False in [1200 in [int(a.calcBanTime(600, 1)) for i in range(10)] for c in range(10)]
 		)
 		a.setBanTimeExtra('rndtime', None)
 		self.assertFalse(
-			False in [1200 in [int(a.calcBanTime(600, 1)) for i in xrange(10)] for c in xrange(10)]
+			False in [1200 in [int(a.calcBanTime(600, 1)) for i in range(10)] for c in range(10)]
 		)
 		# restore default:
 		a.setBanTimeExtra('factor', None);
@@ -230,7 +230,7 @@ class BanTimeIncrDB(LogCaptureTestCase):
 		ticket = FailTicket(ip, stime, [])
 		# test ticket not yet found
 		self.assertEqual(
-			[self.incrBanTime(ticket, 10) for i in xrange(3)], 
+			[self.incrBanTime(ticket, 10) for i in range(3)], 
 			[10, 10, 10]
 		)
 		# add a ticket banned
@@ -285,7 +285,7 @@ class BanTimeIncrDB(LogCaptureTestCase):
 		)
 		# increase ban multiple times:
 		lastBanTime = 20
-		for i in xrange(10):
+		for i in range(10):
 			ticket.setTime(stime + lastBanTime + 5)
 			banTime = self.incrBanTime(ticket, 10)
 			self.assertEqual(banTime, lastBanTime * 2)
@@ -481,7 +481,7 @@ class BanTimeIncrDB(LogCaptureTestCase):
 		ticket = FailTicket(ip, stime-120, [])
 		failManager = FailManager()
 		failManager.setMaxRetry(3)
-		for i in xrange(3):
+		for i in range(3):
 			failManager.addFailure(ticket)
 			obs.add('failureFound', failManager, jail, ticket)
 		obs.wait_empty(5)
diff --git a/fail2ban/tests/samplestestcase.py b/fail2ban/tests/samplestestcase.py
index 0bbd05f5..479b564a 100644
--- a/fail2ban/tests/samplestestcase.py
+++ b/fail2ban/tests/samplestestcase.py
@@ -138,7 +138,7 @@ class FilterSamplesRegex(unittest.TestCase):
 
 	@staticmethod
 	def _filterOptions(opts):
-				return dict((k, v) for k, v in opts.iteritems() if not k.startswith('test.'))
+				return dict((k, v) for k, v in opts.items() if not k.startswith('test.'))
 		
 def testSampleRegexsFactory(name, basedir):
 	def testFilter(self):
@@ -249,10 +249,10 @@ def testSampleRegexsFactory(name, basedir):
 						self.assertTrue(faildata.get('match', False), 
 							"Line matched when shouldn't have")
 						self.assertEqual(len(ret), 1,
-							"Multiple regexs matched %r" % (map(lambda x: x[0], ret)))
+							"Multiple regexs matched %r" % ([x[0] for x in ret]))
 
 						# Verify match captures (at least fid/host) and timestamp as expected
-						for k, v in faildata.iteritems():
+						for k, v in faildata.items():
 							if k not in ("time", "match", "desc", "filter"):
 								fv = fail.get(k, None)
 								if fv is None:
@@ -294,7 +294,7 @@ def testSampleRegexsFactory(name, basedir):
 								'\n'.join(pprint.pformat(fail).splitlines())))
 
 		# check missing samples for regex using each filter-options combination:
-		for fltName, flt in self._filters.iteritems():
+		for fltName, flt in self._filters.items():
 			flt, regexsUsedIdx = flt
 			regexList = flt.getFailRegex()
 			for failRegexIndex, failRegex in enumerate(regexList):
diff --git a/fail2ban/tests/servertestcase.py b/fail2ban/tests/servertestcase.py
index 55e72455..7925ab1e 100644
--- a/fail2ban/tests/servertestcase.py
+++ b/fail2ban/tests/servertestcase.py
@@ -124,14 +124,14 @@ class TransmitterBase(LogCaptureTestCase):
 			self.transm.proceed(["get", jail, cmd]), (0, []))
 		for n, value in enumerate(values):
 			ret = self.transm.proceed(["set", jail, cmdAdd, value])
-			self.assertSortedEqual((ret[0], map(str, ret[1])), (0, map(str, values[:n+1])), level=2)
+			self.assertSortedEqual((ret[0], list(map(str, ret[1]))), (0, list(map(str, values[:n+1]))), level=2)
 			ret = self.transm.proceed(["get", jail, cmd])
-			self.assertSortedEqual((ret[0], map(str, ret[1])), (0, map(str, values[:n+1])), level=2)
+			self.assertSortedEqual((ret[0], list(map(str, ret[1]))), (0, list(map(str, values[:n+1]))), level=2)
 		for n, value in enumerate(values):
 			ret = self.transm.proceed(["set", jail, cmdDel, value])
-			self.assertSortedEqual((ret[0], map(str, ret[1])), (0, map(str, values[n+1:])), level=2)
+			self.assertSortedEqual((ret[0], list(map(str, ret[1]))), (0, list(map(str, values[n+1:]))), level=2)
 			ret = self.transm.proceed(["get", jail, cmd])
-			self.assertSortedEqual((ret[0], map(str, ret[1])), (0, map(str, values[n+1:])), level=2)
+			self.assertSortedEqual((ret[0], list(map(str, ret[1]))), (0, list(map(str, values[n+1:]))), level=2)
 
 	def jailAddDelRegexTest(self, cmd, inValues, outValues, jail):
 		cmdAdd = "add" + cmd
@@ -930,7 +930,7 @@ class TransmitterLogging(TransmitterBase):
 
 	def testLogTarget(self):
 		logTargets = []
-		for _ in xrange(3):
+		for _ in range(3):
 			tmpFile = tempfile.mkstemp("fail2ban", "transmitter")
 			logTargets.append(tmpFile[1])
 			os.close(tmpFile[0])
@@ -1003,26 +1003,26 @@ class TransmitterLogging(TransmitterBase):
 				self.assertEqual(self.transm.proceed(["flushlogs"]), (0, "rolled over"))
 				l.warning("After flushlogs")
 				with open(fn2,'r') as f:
-					line1 = f.next()
+					line1 = next(f)
 					if line1.find('Changed logging target to') >= 0:
-						line1 = f.next()
+						line1 = next(f)
 					self.assertTrue(line1.endswith("Before file moved\n"))
-					line2 = f.next()
+					line2 = next(f)
 					self.assertTrue(line2.endswith("After file moved\n"))
 					try:
-						n = f.next()
+						n = next(f)
 						if n.find("Command: ['flushlogs']") >=0:
-							self.assertRaises(StopIteration, f.next)
+							self.assertRaises(StopIteration, f.__next__)
 						else:
 							self.fail("Exception StopIteration or Command: ['flushlogs'] expected. Got: %s" % n)
 					except StopIteration:
 						pass # on higher debugging levels this is expected
 				with open(fn,'r') as f:
-					line1 = f.next()
+					line1 = next(f)
 					if line1.find('rollover performed on') >= 0:
-						line1 = f.next()
+						line1 = next(f)
 					self.assertTrue(line1.endswith("After flushlogs\n"))
-					self.assertRaises(StopIteration, f.next)
+					self.assertRaises(StopIteration, f.__next__)
 					f.close()
 			finally:
 				os.remove(fn2)
@@ -1185,7 +1185,7 @@ class LoggingTests(LogCaptureTestCase):
 					os.remove(f)
 
 
-from clientreadertestcase import ActionReader, JailsReader, CONFIG_DIR
+from .clientreadertestcase import ActionReader, JailsReader, CONFIG_DIR
 
 class ServerConfigReaderTests(LogCaptureTestCase):
 
diff --git a/fail2ban/tests/sockettestcase.py b/fail2ban/tests/sockettestcase.py
index 69bf8d8b..60f49e57 100644
--- a/fail2ban/tests/sockettestcase.py
+++ b/fail2ban/tests/sockettestcase.py
@@ -153,7 +153,7 @@ class Socket(LogCaptureTestCase):
 		org_handler = RequestHandler.found_terminator
 		try:
 			RequestHandler.found_terminator = lambda self: self.close()
-			self.assertRaisesRegexp(RuntimeError, r"socket connection broken", 
+			self.assertRaisesRegex(RuntimeError, r"socket connection broken", 
 				lambda: client.send(testMessage, timeout=unittest.F2B.maxWaitTime(10)))
 		finally:
 			RequestHandler.found_terminator = org_handler
diff --git a/fail2ban/tests/utils.py b/fail2ban/tests/utils.py
index fcfddba7..cb234e0d 100644
--- a/fail2ban/tests/utils.py
+++ b/fail2ban/tests/utils.py
@@ -35,7 +35,7 @@ import time
 import threading
 import unittest
 
-from cStringIO import StringIO
+from io import StringIO
 from functools import wraps
 
 from ..helpers import getLogger, str2LogLevel, getVerbosityFormat, uni_decode
@@ -174,8 +174,8 @@ def initProcess(opts):
 
 	# Let know the version
 	if opts.verbosity != 0:
-		print("Fail2ban %s test suite. Python %s. Please wait..." \
-				% (version, str(sys.version).replace('\n', '')))
+		print(("Fail2ban %s test suite. Python %s. Please wait..." \
+				% (version, str(sys.version).replace('\n', ''))))
 
 	return opts;
 
@@ -322,7 +322,7 @@ def initTests(opts):
 	c = DNSUtils.CACHE_ipToName
 	# increase max count and max time (too many entries, long time testing):
 	c.setOptions(maxCount=10000, maxTime=5*60)
-	for i in xrange(256):
+	for i in range(256):
 		c.set('192.0.2.%s' % i, None)
 		c.set('198.51.100.%s' % i, None)
 		c.set('203.0.113.%s' % i, None)
@@ -541,8 +541,8 @@ def gatherTests(regexps=None, opts=None):
 import difflib, pprint
 if not hasattr(unittest.TestCase, 'assertDictEqual'):
 	def assertDictEqual(self, d1, d2, msg=None):
-		self.assert_(isinstance(d1, dict), 'First argument is not a dictionary')
-		self.assert_(isinstance(d2, dict), 'Second argument is not a dictionary')
+		self.assertTrue(isinstance(d1, dict), 'First argument is not a dictionary')
+		self.assertTrue(isinstance(d2, dict), 'Second argument is not a dictionary')
 		if d1 != d2:
 			standardMsg = '%r != %r' % (d1, d2)
 			diff = ('\n' + '\n'.join(difflib.ndiff(
@@ -560,7 +560,7 @@ def assertSortedEqual(self, a, b, level=1, nestedOnly=True, key=repr, msg=None):
 	# used to recognize having element as nested dict, list or tuple:
 	def _is_nested(v):
 		if isinstance(v, dict):
-			return any(isinstance(v, (dict, list, tuple)) for v in v.itervalues())
+			return any(isinstance(v, (dict, list, tuple)) for v in v.values())
 		return any(isinstance(v, (dict, list, tuple)) for v in v)
 	# level comparison routine:
 	def _assertSortedEqual(a, b, level, nestedOnly, key):
@@ -573,7 +573,7 @@ def assertSortedEqual(self, a, b, level=1, nestedOnly=True, key=repr, msg=None):
 				return
 			raise ValueError('%r != %r' % (a, b))
 		if isinstance(a, dict) and isinstance(b, dict): # compare dict's:
-			for k, v1 in a.iteritems():
+			for k, v1 in a.items():
 				v2 = b[k]
 				if isinstance(v1, (dict, list, tuple)) and isinstance(v2, (dict, list, tuple)):
 					_assertSortedEqual(v1, v2, level-1 if level != 0 else 0, nestedOnly, key)
@@ -608,14 +608,14 @@ if not hasattr(unittest.TestCase, 'assertRaisesRegexp'):
 				self.fail('\"%s\" does not match \"%s\"' % (regexp, e))
 		else:
 			self.fail('%s not raised' % getattr(exccls, '__name__'))
-	unittest.TestCase.assertRaisesRegexp = assertRaisesRegexp
+	unittest.TestCase.assertRaisesRegex = assertRaisesRegexp
 
 # always custom following methods, because we use atm better version of both (support generators)
 if True: ## if not hasattr(unittest.TestCase, 'assertIn'):
 	def assertIn(self, a, b, msg=None):
 		bb = b
 		wrap = False
-		if msg is None and hasattr(b, '__iter__') and not isinstance(b, basestring):
+		if msg is None and hasattr(b, '__iter__') and not isinstance(b, str):
 			b, bb = itertools.tee(b)
 			wrap = True
 		if a not in b:
@@ -626,7 +626,7 @@ if True: ## if not hasattr(unittest.TestCase, 'assertIn'):
 	def assertNotIn(self, a, b, msg=None):
 		bb = b
 		wrap = False
-		if msg is None and hasattr(b, '__iter__') and not isinstance(b, basestring):
+		if msg is None and hasattr(b, '__iter__') and not isinstance(b, str):
 			b, bb = itertools.tee(b)
 			wrap = True
 		if a in b:
diff --git a/setup.py b/setup.py
deleted file mode 100755
index ce1eedf6..00000000
--- a/setup.py
+++ /dev/null
@@ -1,326 +0,0 @@
-#!/usr/bin/env python
-# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: t -*-
-# vi: set ft=python sts=4 ts=4 sw=4 noet :
-
-# This file is part of Fail2Ban.
-#
-# Fail2Ban is free software; you can redistribute it and/or modify
-# it under the terms of the GNU General Public License as published by
-# the Free Software Foundation; either version 2 of the License, or
-# (at your option) any later version.
-#
-# Fail2Ban is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with Fail2Ban; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
-
-__author__ = "Cyril Jaquier, Steven Hiscocks, Yaroslav Halchenko"
-__copyright__ = "Copyright (c) 2004 Cyril Jaquier, 2008-2016 Fail2Ban Contributors"
-__license__ = "GPL"
-
-import platform
-
-try:
-	import setuptools
-	from setuptools import setup
-	from setuptools.command.install import install
-	from setuptools.command.install_scripts import install_scripts
-except ImportError:
-	setuptools = None
-	from distutils.core import setup
-
-# all versions
-from distutils.command.build_py import build_py
-from distutils.command.build_scripts import build_scripts
-if setuptools is None:
-	from distutils.command.install import install
-	from distutils.command.install_scripts import install_scripts
-try:
-	# python 3.x
-	from distutils.command.build_py import build_py_2to3
-	from distutils.command.build_scripts import build_scripts_2to3
-	_2to3 = True
-except ImportError:
-	# python 2.x
-	_2to3 = False
-
-import os
-from os.path import isfile, join, isdir, realpath
-import re
-import sys
-import warnings
-from glob import glob
-
-from fail2ban.setup import updatePyExec
-
-
-source_dir = os.path.realpath(os.path.dirname(
-	# __file__ seems to be overwritten sometimes on some python versions (e.g. bug of 2.6 by running under cProfile, etc.):
-	sys.argv[0] if os.path.basename(sys.argv[0]) == 'setup.py' else __file__
-))
-
-# Wrapper to install python binding (to current python version):
-class install_scripts_f2b(install_scripts):
-
-	def get_outputs(self):
-		outputs = install_scripts.get_outputs(self)
-		# setup.py --dry-run install:
-		dry_run = not outputs
-		self.update_scripts(dry_run)
-		if dry_run:
-			#bindir = self.install_dir
-			bindir = self.build_dir
-			print('creating fail2ban-python binding -> %s (dry-run, real path can be different)' % (bindir,))
-			print('Copying content of %s to %s' % (self.build_dir, self.install_dir));
-			return outputs
-		fn = None
-		for fn in outputs:
-			if os.path.basename(fn) == 'fail2ban-server':
-				break
-		bindir = os.path.dirname(fn)
-		print('creating fail2ban-python binding -> %s' % (bindir,))
-		updatePyExec(bindir)
-		return outputs
-
-	def update_scripts(self, dry_run=False):
-		buildroot = os.path.dirname(self.build_dir)
-		install_dir = self.install_dir
-		try:
-			# remove root-base from install scripts path:
-			root = self.distribution.command_options['install']['root'][1]
-			if install_dir.startswith(root):
-				install_dir = install_dir[len(root):]
-		except: # pragma: no cover
-			print('WARNING: Cannot find root-base option, check the bin-path to fail2ban-scripts in "fail2ban.service".')
-		print('Creating %s/fail2ban.service (from fail2ban.service.in): @BINDIR@ -> %s' % (buildroot, install_dir))
-		with open(os.path.join(source_dir, 'files/fail2ban.service.in'), 'r') as fn:
-			lines = fn.readlines()
-		fn = None
-		if not dry_run:
-			fn = open(os.path.join(buildroot, 'fail2ban.service'), 'w')
-		try:
-			for ln in lines:
-				ln = re.sub(r'@BINDIR@', lambda v: install_dir, ln)
-				if dry_run:
-					sys.stdout.write(' | ' + ln)
-					continue
-				fn.write(ln)
-		finally:
-			if fn: fn.close()
-		if dry_run:
-			print(' `')
-
-
-# Wrapper to specify fail2ban own options:
-class install_command_f2b(install):
-	user_options = install.user_options + [
-		('disable-2to3', None, 'Specify to deactivate 2to3, e.g. if the install runs from fail2ban test-cases.'),
-		('without-tests', None, 'without tests files installation'),
-	]
-	def initialize_options(self):
-		self.disable_2to3 = None
-		self.without_tests = None
-		install.initialize_options(self)
-	def finalize_options(self):
-		global _2to3
-		## in the test cases 2to3 should be already done (fail2ban-2to3):
-		if self.disable_2to3:
-			_2to3 = False
-		if _2to3:
-			cmdclass = self.distribution.cmdclass
-			cmdclass['build_py'] = build_py_2to3
-			cmdclass['build_scripts'] = build_scripts_2to3
-		if self.without_tests:
-			self.distribution.scripts.remove('bin/fail2ban-testcases')
-
-			self.distribution.packages.remove('fail2ban.tests')
-			self.distribution.packages.remove('fail2ban.tests.action_d')
-
-			del self.distribution.package_data['fail2ban.tests']
-		install.finalize_options(self)
-	def run(self):
-		install.run(self)
-
-
-# Update fail2ban-python env to current python version (where f2b-modules located/installed)
-updatePyExec(os.path.join(source_dir, 'bin'))
-
-if setuptools and "test" in sys.argv:
-	import logging
-	logSys = logging.getLogger("fail2ban")
-	hdlr = logging.StreamHandler(sys.stdout)
-	fmt = logging.Formatter("%(asctime)-15s %(message)s")
-	hdlr.setFormatter(fmt)
-	logSys.addHandler(hdlr)
-	if set(["-q", "--quiet"]) & set(sys.argv):
-		logSys.setLevel(logging.CRITICAL)
-		warnings.simplefilter("ignore")
-		sys.warnoptions.append("ignore")
-	elif set(["-v", "--verbose"]) & set(sys.argv):
-		logSys.setLevel(logging.DEBUG)
-	else:
-		logSys.setLevel(logging.INFO)
-elif "test" in sys.argv:
-	print("python distribute required to execute fail2ban tests")
-	print("")
-
-longdesc = '''
-Fail2Ban scans log files like /var/log/pwdfail or
-/var/log/apache/error_log and bans IP that makes
-too many password failures. It updates firewall rules
-to reject the IP address or executes user defined
-commands.'''
-
-if setuptools:
-	setup_extra = {
-		'test_suite': "fail2ban.tests.utils.gatherTests",
-		'use_2to3': True,
-	}
-else:
-	setup_extra = {}
-
-data_files_extra = []
-if os.path.exists('/var/run'):
-	# if we are on the system with /var/run -- we are to use it for having fail2ban/
-	# directory there for socket file etc.
-	# realpath is used to possibly resolve /var/run -> /run symlink
-	data_files_extra += [(realpath('/var/run/fail2ban'), '')]
-
-# Installing documentation files only under Linux or other GNU/ systems
-# (e.g. GNU/kFreeBSD), since others might have protective mechanisms forbidding
-# installation there (see e.g. #1233)
-platform_system = platform.system().lower()
-doc_files = ['README.md', 'DEVELOP', 'FILTERS', 'doc/run-rootless.txt']
-if platform_system in ('solaris', 'sunos'):
-	doc_files.append('README.Solaris')
-if platform_system in ('linux', 'solaris', 'sunos') or platform_system.startswith('gnu'):
-	data_files_extra.append(
-		('/usr/share/doc/fail2ban', doc_files)
-	)
-
-# Get version number, avoiding importing fail2ban.
-# This is due to tests not functioning for python3 as 2to3 takes place later
-exec(open(join("fail2ban", "version.py")).read())
-
-setup(
-	name = "fail2ban",
-	version = version,
-	description = "Ban IPs that make too many password failures",
-	long_description = longdesc,
-	author = "Cyril Jaquier & Fail2Ban Contributors",
-	author_email = "cyril.jaquier@fail2ban.org",
-	url = "http://www.fail2ban.org",
-	license = "GPL",
-	platforms = "Posix",
-	cmdclass = {
-		'build_py': build_py, 'build_scripts': build_scripts,
-		'install_scripts': install_scripts_f2b, 'install': install_command_f2b
-	},
-	scripts = [
-		'bin/fail2ban-client',
-		'bin/fail2ban-server',
-		'bin/fail2ban-regex',
-		'bin/fail2ban-testcases',
-		# 'bin/fail2ban-python', -- link (binary), will be installed via install_scripts_f2b wrapper
-	],
-	packages = [
-		'fail2ban',
-		'fail2ban.client',
-		'fail2ban.server',
-		'fail2ban.tests',
-		'fail2ban.tests.action_d',
-	],
-	package_data = {
-		'fail2ban.tests':
-			[ join(w[0], f).replace("fail2ban/tests/", "", 1)
-				for w in os.walk('fail2ban/tests/files')
-				for f in w[2]] +
-			[ join(w[0], f).replace("fail2ban/tests/", "", 1)
-				for w in os.walk('fail2ban/tests/config')
-				for f in w[2]] +
-			[ join(w[0], f).replace("fail2ban/tests/", "", 1)
-				for w in os.walk('fail2ban/tests/action_d')
-				for f in w[2]]
-	},
-	data_files = [
-		('/etc/fail2ban',
-			glob("config/*.conf")
-		),
-		('/etc/fail2ban/filter.d',
-			glob("config/filter.d/*.conf")
-		),
-		('/etc/fail2ban/filter.d/ignorecommands',
-			[p for p in glob("config/filter.d/ignorecommands/*") if isfile(p)]
-		),
-		('/etc/fail2ban/action.d',
-			glob("config/action.d/*.conf") +
-			glob("config/action.d/*.py")
-		),
-		('/etc/fail2ban/fail2ban.d',
-			''
-		),
-		('/etc/fail2ban/jail.d',
-			''
-		),
-		('/var/lib/fail2ban',
-			''
-		),
-	] + data_files_extra,
-	**setup_extra
-)
-
-# Do some checks after installation
-# Search for obsolete files.
-obsoleteFiles = []
-elements = {
-	"/etc/":
-		[
-			"fail2ban.conf"
-		],
-	"/usr/bin/":
-		[
-			"fail2ban.py"
-		],
-	"/usr/lib/fail2ban/":
-		[
-			"version.py",
-			"protocol.py"
-		]
-}
-
-for directory in elements:
-	for f in elements[directory]:
-		path = join(directory, f)
-		if isfile(path):
-			obsoleteFiles.append(path)
-
-if obsoleteFiles:
-	print("")
-	print("Obsolete files from previous Fail2Ban versions were found on "
-		  "your system.")
-	print("Please delete them:")
-	print("")
-	for f in obsoleteFiles:
-		print("\t" + f)
-	print("")
-
-if isdir("/usr/lib/fail2ban"):
-	print("")
-	print("Fail2ban is not installed under /usr/lib anymore. The new "
-		  "location is under /usr/share. Please remove the directory "
-		  "/usr/lib/fail2ban and everything under this directory.")
-	print("")
-
-# Update config file
-if sys.argv[1] == "install":
-	print("")
-	print("Please do not forget to update your configuration files.")
-	print("They are in \"/etc/fail2ban/\".")
-	print("")
-	print("You can also install systemd service-unit file from \"build/fail2ban.service\"")
-	print("resp. corresponding init script from \"files/*-initd\".")
-	print("")
-- 
2.17.1