diff --git a/lib/func_args.py b/lib/func_args.py
new file mode 100644
index 0000000..3f0b9c5
--- /dev/null
+++ b/lib/func_args.py
@@ -0,0 +1,71 @@
+#!/usr/bin/env python
+
+r"""
+This module provides argument manipulation functions like pop_arg.
+"""
+
+import gen_print as gp
+
+
+def pop_arg(default, *args, **kwargs):
+    r"""
+    Pop a named argument from the args/kwargs and return a tuple consisting of
+    the argument value, the modified args and the modified kwargs.
+
+    The name of the argument is determined automatically by this function by
+    examining the source code which calls it (see examples below).  If no
+    suitable argument can be found, the default value passed to this function
+    will be returned as the argument value.  This function is useful for
+    wrapper functions that wish to process arguments in some way before
+    calling subordinate function.
+
+    Examples:
+
+    Given this code:
+
+    def func1(*args, **kwargs):
+
+        last_name, args, kwargs = pop_arg('Doe', *args, **kwargs)
+        some_function(last_name.capitalize(), *args, **kwargs)
+
+    Consider this call to func1:
+
+    func1('Johnson', ssn='111-11-1111')
+
+    The pop_arg in func1 would return the following:
+
+        'Johnson', [], {'ssn': "111-11-1111"}
+
+    Notice that the 'args' value returned is an empty list. Since last_name
+    was assumed to be the first positional argument, it was popped from args.
+
+    Now consider this call to func1:
+
+    func1(last_name='Johnson', ssn='111-11-1111')
+
+    The pop_arg in func1 would return the same last_name value as in the
+    previous example.  The only difference being that the last_name value was
+    popped from kwargs rather than from args.
+
+    Description of argument(s):
+    default                         The value to return if the named argument
+                                    is not present in args/kwargs.
+    args                            The positional arguments passed to the
+                                    calling function.
+    kwargs                          The keyword arguments passed to the
+                                    calling function.
+    """
+
+    # Retrieve the argument name by examining the source code.
+    arg_name = gp.get_arg_name(None, arg_num=-3, stack_frame_ix=2)
+    if arg_name in kwargs:
+        arg_value = kwargs.pop(arg_name)
+    else:
+        # Convert args from a tuple to a list.
+        args = list(args)
+        if args:
+            arg_value = args.pop(0)
+        else:
+            arg_value = default
+
+    return arg_value, args, kwargs