Merged revisions 74075,74187,74197,74201,74216,74225 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

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  r74075 | georg.brandl | 2009-07-18 05:06:31 -0400 (Sat, 18 Jul 2009) | 1 line

  #6505: fix typos.
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  r74187 | benjamin.peterson | 2009-07-23 10:19:08 -0400 (Thu, 23 Jul 2009) | 1 line

  use bools for autoraise
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  r74197 | benjamin.peterson | 2009-07-24 22:03:48 -0400 (Fri, 24 Jul 2009) | 1 line

  clarify
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  r74201 | amaury.forgeotdarc | 2009-07-25 12:22:06 -0400 (Sat, 25 Jul 2009) | 2 lines

  Better name a variable: 'buf' seems to imply a mutable buffer.
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  r74216 | michael.foord | 2009-07-26 17:12:14 -0400 (Sun, 26 Jul 2009) | 1 line

  Issue 6581. Michael Foord
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  r74225 | kurt.kaiser | 2009-07-27 12:09:28 -0400 (Mon, 27 Jul 2009) | 5 lines

  1. Clean workspace more thoughly before build.
  2. Add url of branch we are building to 'results' webpage.
     (url is now available in $repo_path, could be added to failure email.)
  3. Adjust permissions to improve upload reliability.
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diff --git a/Lib/inspect.py b/Lib/inspect.py
index fe3ffc7..9a84de3 100644
--- a/Lib/inspect.py
+++ b/Lib/inspect.py
@@ -994,7 +994,10 @@
         tb = tb.tb_next
     return framelist
 
-currentframe = sys._getframe
+if hasattr(sys, '_getframe'):
+    currentframe = sys._getframe
+else:
+    currentframe = lambda _=None: None
 
 def stack(context=1):
     """Return a list of records for the stack above the caller's frame."""