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Fix infinite regress when inspecting <string> or <stdin> frames.

This commit is contained in:
Phillip J. Eby 2006-04-30 15:59:26 +00:00
parent de9b624fb9
commit 72ae6c80d4
1 changed files with 7 additions and 1 deletions
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8
Lib/inspect.py
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@ -353,7 +353,13 @@ def getsourcefile(object):
if 'b' in mode and string.lower(filename[-len(suffix):]) == suffix: if 'b' in mode and string.lower(filename[-len(suffix):]) == suffix:
# Looks like a binary file. We want to only return a text file. # Looks like a binary file. We want to only return a text file.
return None return None
if os.path.exists(filename) or hasattr(getmodule(object), '__loader__'): if os.path.exists(filename):
return filename
# Ugly but necessary - '<stdin>' and '<string>' mean that getmodule()
# would infinitely recurse, because they're not real files nor loadable
# Note that this means that writing a PEP 302 loader that uses '<'
# at the start of a filename is now not a good idea. :(
if filename[:1]!='<' and hasattr(getmodule(object), '__loader__'):
return filename return filename
def getabsfile(object): def getabsfile(object):