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gh-139940: Handle RuntimeError when attaching to a non-existing process in pdb.py #139941

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gh-139940: Handle RuntimeError when attaching to a non-existing process in pdb.py #139941

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e3d83e2
Handle RuntimeError when attaching to a process in pdb.py
frostming Oct 11, 2025
e4cf4cc
📜🤖 Added by blurb_it.
blurb-it[bot] Oct 11, 2025
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5 changes: 5 additions & 0 deletions Lib/pdb.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3577,6 +3577,11 @@ def main():
parser.error("argument -m: not allowed with argument --pid")
try:
attach(opts.pid, opts.commands)
except RuntimeError as e:
while e.__context__ is not None:
e = e.__context__
print(f"Error attaching to process: {e}")
sys.exit(1)
except PermissionError as e:
exit_with_permission_help_text()
return
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2025-10-11-09-07-06.gh-issue-139940.g54efZ.rst
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@@ -0,0 +1 @@
Print clearer error message when using pdb to attaching to a non-existing process on Linux.
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