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[3.9] bpo-28528: Fix pdb.checkline() attribute error when 'curframe' is None (GH-25438) (GH-26053)

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Co-authored-by: Thomas Kluyver <takowl@gmail.com>
(cherry picked from commit 8563a7052c)

Co-authored-by: Erlend Egeberg Aasland <erlend.aasland@innova.no>

Automerge-Triggered-By: GH:iritkatriel
This commit is contained in:
Erlend Egeberg Aasland 2021-05-12 11:04:10 +02:00 • committed by GitHub
parent 7d38b04b61
commit 6c190b5ae5
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3 changed files with 42 additions and 1 deletions
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Lib/pdb.py
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@ -752,7 +752,8 @@ class Pdb(bdb.Bdb, cmd.Cmd):
"""
# this method should be callable before starting debugging, so default
# to "no globals" if there is no current frame
globs = self.curframe.f_globals if hasattr(self, 'curframe') else None
frame = getattr(self, 'curframe', None)
globs = frame.f_globals if frame else None
line = linecache.getline(filename, lineno, globs)
if not line:
self.message('End of file')