8000 gh-93696: Locate frozen module source with __file__ by SnoopJ · Pull Request #93697 · python/cpython · GitHub
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gh-93696: Locate frozen module source with __file__ #93697

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Merged
merged 14 commits into from
Oct 25, 2022
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gh-93696: Locate frozen module source with __file__ #93697

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c91afc1
Locate frozen module source with __file__
SnoopJ Jun 10, 2022
4baf238
Add NEWS entry
SnoopJ Jun 10, 2022
a9e9c7a
Merge branch 'main' into gh-93696-pdb-find-frozen-source
SnoopJ Jun 12, 2022
ff51687
Add test for listing source for frozen modules
SnoopJ Jun 12, 2022
e58c4dc
Merge branch 'main' into gh-93696-pdb-find-frozen-source
SnoopJ Jun 27, 2022
793f2bf
Merge branch 'main' into gh-93696-pdb-find-frozen-source
SnoopJ Jul 15, 2022
e88d3a5
Add issue reference to frozen_list test
SnoopJ Jul 15, 2022
47eae63
Merge branch 'main' into gh-93696-pdb-find-frozen-source
SnoopJ Jul 15, 2022
116c26b
Use assertIn() instead of assertTrue()
SnoopJ Jul 17, 2022
163f3df
Link to pdb module docs in news fragment
SnoopJ Jul 17, 2022
c716862
Merge branch 'main' into gh-93696-pdb-find-frozen-source
SnoopJ Jul 17, 2022
55f2a0f
Clarify that gh-89815 is a superceding issue
SnoopJ Jul 22, 2022
3facf2f
Merge branch 'main' into gh-93696-pdb-find-frozen-source
SnoopJ Oct 24, 2022
a2589c9
Only apply filename workaround for string attribute
SnoopJ Oct 25, 2022
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Locate frozen module source with __file__
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@SnoopJ
SnoopJ committed Jun 10, 2022
commit c91afc1c0a7b5ba780e960ca495f1b064d410fb5
4 changes: 4 additions & 0 deletions Lib/pdb.py
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Expand Up @@ -1332,6 +1332,10 @@ def do_list(self, arg):
if last is None:
last = first + 10
filename = self.curframe.f_code.co_filename
# gh-93696: stdlib frozen modules provide a useful __file__ (see also gh-89815)
if filename.startswith("<frozen"):
if "__file__" in self.curframe.f_globals:
filename = self.curframe.f_globals["__file__"]
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@JelleZijlstra JelleZijlstra Oct 25, 2022 •
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What if __file__ is not a string? It looks like get_file_breaks will crash in that case. We should probably just ignore __file__ in that case.

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Hmm, that's a good point. I would think it's a small edge, but it's easy to be more cautious about it.

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Yes, I think it's important for a debugger to be resilient in the face of unusual program state.

breaklist = self.get_file_breaks(filename)
try:
lines = linecache.getlines(filename, self.curframe.f_globals)
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