diff --git a/poky/bitbake/lib/bs4/__init__.py b/poky/bitbake/lib/bs4/__init__.py
index f6fdfd5..e35725b 100644
--- a/poky/bitbake/lib/bs4/__init__.py
+++ b/poky/bitbake/lib/bs4/__init__.py
@@ -427,7 +427,7 @@
         if self.is_xml:
             # Print the XML declaration
             encoding_part = ''
-            if eventual_encoding != None:
+            if eventual_encoding is not None:
                 encoding_part = ' encoding="%s"' % eventual_encoding
             prefix = '<?xml version="1.0"%s?>\n' % encoding_part
         else:
diff --git a/poky/bitbake/lib/bs4/builder/_html5lib.py b/poky/bitbake/lib/bs4/builder/_html5lib.py
index 2b7a70a..9e9216e 100644
--- a/poky/bitbake/lib/bs4/builder/_html5lib.py
+++ b/poky/bitbake/lib/bs4/builder/_html5lib.py
@@ -2,7 +2,6 @@
     'HTML5TreeBuilder',
     ]
 
-from pdb import set_trace
 import warnings
 from bs4.builder import (
     PERMISSIVE,
@@ -322,7 +321,7 @@
         return self.element.contents
 
     def getNameTuple(self):
-        if self.namespace == None:
+        if self.namespace is None:
             return namespaces["html"], self.name
         else:
             return self.namespace, self.name
diff --git a/poky/bitbake/lib/bs4/dammit.py b/poky/bitbake/lib/bs4/dammit.py
index 805aa90..7ad9e0d 100644
--- a/poky/bitbake/lib/bs4/dammit.py
+++ b/poky/bitbake/lib/bs4/dammit.py
@@ -8,12 +8,10 @@
 """
 __license__ = "MIT"
 
-from pdb import set_trace
 import codecs
 from html.entities import codepoint2name
 import re
 import logging
-import string
 
 # Import a library to autodetect character encodings.
 chardet_type = None
@@ -38,12 +36,6 @@
         def chardet_dammit(s):
             return None
 
-# Available from http://cjkpython.i18n.org/.
-try:
-    import iconv_codec
-except ImportError:
-    pass
-
 xml_encoding_re = re.compile(
     r'^<\?.*encoding=[\'"](.*?)[\'"].*\?>'.encode(), re.I)
 html_meta_re = re.compile(
diff --git a/poky/bitbake/lib/bs4/element.py b/poky/bitbake/lib/bs4/element.py
index 3775a60..68be42d 100644
--- a/poky/bitbake/lib/bs4/element.py
+++ b/poky/bitbake/lib/bs4/element.py
@@ -1,6 +1,5 @@
 __license__ = "MIT"
 
-from pdb import set_trace
 import collections.abc
 import re
 import sys
diff --git a/poky/bitbake/lib/bs4/testing.py b/poky/bitbake/lib/bs4/testing.py
index 3a2f260..953bca8 100644
--- a/poky/bitbake/lib/bs4/testing.py
+++ b/poky/bitbake/lib/bs4/testing.py
@@ -4,7 +4,6 @@
 
 import pickle
 import copy
-import functools
 import unittest
 from unittest import TestCase
 from bs4 import BeautifulSoup
diff --git a/poky/bitbake/lib/bs4/tests/test_docs.py b/poky/bitbake/lib/bs4/tests/test_docs.py
index 5b9f677..d1d76a3 100644
--- a/poky/bitbake/lib/bs4/tests/test_docs.py
+++ b/poky/bitbake/lib/bs4/tests/test_docs.py
@@ -7,19 +7,15 @@
     'additional_tests',
     ]
 
-import atexit
 import doctest
-import os
 #from pkg_resources import (
 #    resource_filename, resource_exists, resource_listdir, cleanup_resources)
-import unittest
 
 DOCTEST_FLAGS = (
     doctest.ELLIPSIS |
     doctest.NORMALIZE_WHITESPACE |
     doctest.REPORT_NDIFF)
 
-
 # def additional_tests():
 #     "Run the doc tests (README.txt and docs/*, if any exist)"
 #     doctest_files = [
diff --git a/poky/bitbake/lib/bs4/tests/test_htmlparser.py b/poky/bitbake/lib/bs4/tests/test_htmlparser.py
index b45e35f..30a25e6 100644
--- a/poky/bitbake/lib/bs4/tests/test_htmlparser.py
+++ b/poky/bitbake/lib/bs4/tests/test_htmlparser.py
@@ -1,7 +1,6 @@
 """Tests to ensure that the html.parser tree builder generates good
 trees."""
 
-from pdb import set_trace
 import pickle
 from bs4.testing import SoupTest, HTMLTreeBuilderSmokeTest
 from bs4.builder import HTMLParserTreeBuilder
diff --git a/poky/bitbake/lib/bs4/tests/test_lxml.py b/poky/bitbake/lib/bs4/tests/test_lxml.py
index 6c2a1d7..6b6cdd0 100644
--- a/poky/bitbake/lib/bs4/tests/test_lxml.py
+++ b/poky/bitbake/lib/bs4/tests/test_lxml.py
@@ -1,6 +1,5 @@
 """Tests to ensure that the lxml tree builder generates good trees."""
 
-import re
 import warnings
 
 try:
@@ -14,13 +13,8 @@
 if LXML_PRESENT:
     from bs4.builder import LXMLTreeBuilder, LXMLTreeBuilderForXML
 
-from bs4 import (
-    BeautifulSoup,
-    BeautifulStoneSoup,
-    )
-from bs4.element import Comment, Doctype, SoupStrainer
+from bs4 import BeautifulStoneSoup
 from bs4.testing import skipIf
-from bs4.tests import test_htmlparser
 from bs4.testing import (
     HTMLTreeBuilderSmokeTest,
     XMLTreeBuilderSmokeTest,
diff --git a/poky/bitbake/lib/bs4/tests/test_soup.py b/poky/bitbake/lib/bs4/tests/test_soup.py
index f87949e..6ad3cb3 100644
--- a/poky/bitbake/lib/bs4/tests/test_soup.py
+++ b/poky/bitbake/lib/bs4/tests/test_soup.py
@@ -1,16 +1,12 @@
 # -*- coding: utf-8 -*-
 """Tests of Beautiful Soup as a whole."""
 
-from pdb import set_trace
 import logging
 import unittest
 import sys
 import tempfile
 
-from bs4 import (
-    BeautifulSoup,
-    BeautifulStoneSoup,
-)
+from bs4 import BeautifulSoup
 from bs4.element import (
     CharsetMetaAttributeValue,
     ContentMetaAttributeValue,
diff --git a/poky/bitbake/lib/bs4/tests/test_tree.py b/poky/bitbake/lib/bs4/tests/test_tree.py
index 6d3e67f..8e5c664 100644
--- a/poky/bitbake/lib/bs4/tests/test_tree.py
+++ b/poky/bitbake/lib/bs4/tests/test_tree.py
@@ -9,16 +9,12 @@
 methods tested here.
 """
 
-from pdb import set_trace
 import copy
 import pickle
 import re
 import warnings
 from bs4 import BeautifulSoup
-from bs4.builder import (
-    builder_registry,
-    HTMLParserTreeBuilder,
-)
+from bs4.builder import builder_registry
 from bs4.element import (
     PY3K,
     CData,
@@ -29,10 +25,7 @@
     SoupStrainer,
     Tag,
 )
-from bs4.testing import (
-    SoupTest,
-    skipIf,
-)
+from bs4.testing import SoupTest
 
 XML_BUILDER_PRESENT = (builder_registry.lookup("xml") is not None)
 LXML_PRESENT = (builder_registry.lookup("lxml") is not None)