Merged revisions 67952,67957-67958,67960-67961,67963,67973,67978,67995,68030,68057,68061 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r67952 | georg.brandl | 2008-12-27 11:42:40 -0600 (Sat, 27 Dec 2008) | 2 lines

  #4752: actually use custom handler in example.
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  r67957 | georg.brandl | 2008-12-27 12:49:19 -0600 (Sat, 27 Dec 2008) | 2 lines

  #4754: improve winsound documentation.
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  r67958 | georg.brandl | 2008-12-27 13:02:59 -0600 (Sat, 27 Dec 2008) | 2 lines

  #4682: 'b' is actually unsigned char.
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  r67960 | georg.brandl | 2008-12-27 13:04:44 -0600 (Sat, 27 Dec 2008) | 2 lines

  #4695: fix backslashery.
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  r67961 | georg.brandl | 2008-12-27 13:06:04 -0600 (Sat, 27 Dec 2008) | 2 lines

  Use :samp: role.
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  r67963 | georg.brandl | 2008-12-27 13:11:15 -0600 (Sat, 27 Dec 2008) | 2 lines

  #4671: document that pydoc imports modules.
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  r67973 | alexandre.vassalotti | 2008-12-27 20:58:22 -0600 (Sat, 27 Dec 2008) | 2 lines

  Document Py_VaBuildValue.
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  r67978 | georg.brandl | 2008-12-28 05:58:49 -0600 (Sun, 28 Dec 2008) | 2 lines

  #4731: clarify message about missing module prerequisites.
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  r67995 | benjamin.peterson | 2008-12-28 15:16:07 -0600 (Sun, 28 Dec 2008) | 1 line

  #4763 PyErr_ExceptionMatches won't blow up with NULL arguments
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  r68030 | benjamin.peterson | 2008-12-29 15:38:14 -0600 (Mon, 29 Dec 2008) | 1 line

  fix French
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  r68057 | vinay.sajip | 2008-12-30 01:01:25 -0600 (Tue, 30 Dec 2008) | 1 line

  Minor documentation change relating to NullHandler.
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  r68061 | georg.brandl | 2008-12-30 04:15:49 -0600 (Tue, 30 Dec 2008) | 2 lines

  #4778: attributes can't be called.
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diff --git a/Doc/library/pydoc.rst b/Doc/library/pydoc.rst
index 41ea1c6..1701662 100644
--- a/Doc/library/pydoc.rst
+++ b/Doc/library/pydoc.rst
@@ -34,6 +34,13 @@
 Unix), and refers to an existing Python source file, then documentation is
 produced for that file.
 
+.. note::
+
+   In order to find objects and their documentation, :mod:`pydoc` imports the
+   module(s) to be documented.  Therefore, any code on module level will be
+   executed on that occasion.  Use an ``if __name__ == '__main__':`` guard to
+   only execute code when a file is invoked as a script and not just imported.
+
 Specifying a :option:`-w` flag before the argument will cause HTML documentation
 to be written out to a file in the current directory, instead of displaying text
 on the console.