Merged revisions 73623-73624 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/branches/py3k

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  r73623 | benjamin.peterson | 2009-06-28 12:22:03 -0500 (Sun, 28 Jun 2009) | 58 lines

  Merged revisions 73004,73439,73496,73509,73529,73564,73576-73577,73595-73596,73605 via svnmerge from
  svn+ssh://pythondev@svn.python.org/python/trunk

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    r73004 | jeffrey.yasskin | 2009-05-28 22:44:31 -0500 (Thu, 28 May 2009) | 5 lines

    Fix nearly all compilation warnings under Apple gcc-4.0.  Tested with OPT="-g
    -Wall -Wstrict-prototypes -Werror" in both --with-pydebug mode and --without.
    There's still a batch of non-prototype warnings in Xlib.h that I don't know how
    to fix.
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    r73439 | benjamin.peterson | 2009-06-15 19:29:31 -0500 (Mon, 15 Jun 2009) | 1 line

    don't mask encoding errors when decoding a string #6289
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    r73496 | vinay.sajip | 2009-06-21 12:37:27 -0500 (Sun, 21 Jun 2009) | 1 line

    Issue #6314: logging.basicConfig() performs extra checks on the "level" argument.
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    r73509 | amaury.forgeotdarc | 2009-06-22 14:33:48 -0500 (Mon, 22 Jun 2009) | 2 lines

    #4490 Fix sample code run by "python -m xml.sax.xmlreader"
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    r73529 | r.david.murray | 2009-06-23 13:02:46 -0500 (Tue, 23 Jun 2009) | 4 lines

    Fix issue 5230 by having pydoc's safeimport check to see if the import
    error was thrown from itself in order to decide if the module can't be
    found.  Thanks to Lucas Prado Melo for collaborating on the fix and tests.
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    r73564 | amaury.forgeotdarc | 2009-06-25 17:29:29 -0500 (Thu, 25 Jun 2009) | 6 lines

    #2016 Fix a crash in function call when the **kwargs dictionary is mutated
    during the function call setup.

    This even gives a slight speedup, probably because tuple allocation
    is faster than PyMem_NEW.
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    r73576 | benjamin.peterson | 2009-06-26 18:37:06 -0500 (Fri, 26 Jun 2009) | 1 line

    document is_declared_global()
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    r73577 | benjamin.peterson | 2009-06-27 09:16:23 -0500 (Sat, 27 Jun 2009) | 1 line

    link to extensive generator docs in the reference manual
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    r73595 | ezio.melotti | 2009-06-27 18:45:39 -0500 (Sat, 27 Jun 2009) | 1 line

    stmt and setup can contain multiple statements, see #5896
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    r73596 | ezio.melotti | 2009-06-27 19:07:45 -0500 (Sat, 27 Jun 2009) | 1 line

    Fixed a wrong apostrophe
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    r73605 | georg.brandl | 2009-06-28 07:10:18 -0500 (Sun, 28 Jun 2009) | 1 line

    Remove stray pychecker directive.
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  r73624 | benjamin.peterson | 2009-06-28 12:32:20 -0500 (Sun, 28 Jun 2009) | 1 line

  document BufferedIOBase.raw and TextIOBase.buffer
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diff --git a/Lib/pydoc.py b/Lib/pydoc.py
index 6475dec..fe439c2 100755
--- a/Lib/pydoc.py
+++ b/Lib/pydoc.py
@@ -54,6 +54,7 @@
 
 import sys, imp, os, re, inspect, builtins, pkgutil
 from reprlib import Repr
+from traceback import extract_tb as _extract_tb
 try:
     from collections import deque
 except ImportError:
@@ -292,9 +293,9 @@
         elif exc is SyntaxError:
             # A SyntaxError occurred before we could execute the module.
             raise ErrorDuringImport(value.filename, info)
-        elif exc is ImportError and \
-             str(value).lower().split()[:2] == ['no', 'module']:
-            # The module was not found.
+        elif exc is ImportError and _extract_tb(tb)[-1][2]=='safeimport':
+            # The import error occurred directly in this function,
+            # which means there is no such module in the path.
             return None
         else:
             # Some other error occurred during the importing process.