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[3.9] bpo-34990: Treat the pyc header's mtime in compileall as an unsigned int (GH-19708)

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(cherry picked from commit bb21e28fd0)

Co-authored-by: Ammar Askar <ammar@ammaraskar.com>
Co-authored-by: Stéphane Wirtel <stephane@wirtel.be>
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Miss Islington (bot) 2021-08-24 08:07:31 -07:00 • committed by GitHub
parent 834a2eb945
commit 9d3b6b2472
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4 changed files with 35 additions and 11 deletions
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Lib/compileall.py
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@ -219,8 +219,8 @@ def compile_file(fullname, ddir=None, force=False, rx=None, quiet=0,
if not force:
try:
mtime = int(os.stat(fullname).st_mtime)
expect = struct.pack('<4sll', importlib.util.MAGIC_NUMBER,
0, mtime)
expect = struct.pack('<4sLL', importlib.util.MAGIC_NUMBER,
0, mtime & 0xFFFF_FFFF)
for cfile in opt_cfiles.values():
with open(cfile, 'rb') as chandle:
actual = chandle.read(12)