More trivial comment -> docstring transformations by Ka-Ping Yee,
who writes:

Here is batch 2, as a big collection of CVS context diffs.
Along with moving comments into docstrings, i've added a
couple of missing docstrings and attempted to make sure more
module docstrings begin with a one-line summary.

I did not add docstrings to the methods in profile.py for
fear of upsetting any careful optimizations there, though
i did move class documentation into class docstrings.

The convention i'm using is to leave credits/version/copyright
type of stuff in # comments, and move the rest of the descriptive
stuff about module usage into module docstrings.  Hope this is
okay.
diff --git a/Lib/posixpath.py b/Lib/posixpath.py
index 874dc4c..090f245 100644
--- a/Lib/posixpath.py
+++ b/Lib/posixpath.py
@@ -1,13 +1,13 @@
-# Module 'posixpath' -- common operations on Posix pathnames.
-# Some of this can actually be useful on non-Posix systems too, e.g.
-# for manipulation of the pathname component of URLs.
-# The "os.path" name is an alias for this module on Posix systems;
-# on other systems (e.g. Mac, Windows), os.path provides the same
-# operations in a manner specific to that platform, and is an alias
-# to another module (e.g. macpath, ntpath).
-"""Common pathname manipulations, Posix version. 
-Instead of importing this module
-directly, import os and refer to this module as os.path.
+"""Common operations on Posix pathnames.
+
+Instead of importing this module directly, import os and refer to
+this module as os.path.  The "os.path" name is an alias for this
+module on Posix systems; on other systems (e.g. Mac, Windows),
+os.path provides the same operations in a manner specific to that
+platform, and is an alias to another module (e.g. macpath, ntpath).
+
+Some of this can actually be useful on non-Posix systems too, e.g.
+for manipulation of the pathname component of URLs.
 """
 
 import os
@@ -369,8 +369,8 @@
     return slashes + string.joinfields(comps, '/')
 
 
-# Return an absolute path.
 def abspath(path):
+    """Return an absolute path."""
     if not isabs(path):
         path = join(os.getcwd(), path)
     return normpath(path)