8000 Enable true Zip64 support. by jsirois · Pull Request #2714 · pex-tool/pex · GitHub
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Enable true Zip64 support. #2714

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Merged
merged 1 commit into from
Mar 10, 2025
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Enable true Zip64 support. #2714

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10 changes: 10 additions & 0 deletions pex/common.py
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Original file line number Diff line number Diff line change
Expand Up @@ -183,6 +183,16 @@ def teardown(self):
_MKDTEMP_SINGLETON = MktempTeardownRegistry()


# When Zip64 support was added to Python long ago, the limit was set to
# half of what it should be. Pex is always dealing with zips it creates
# via Python and so it does not need to worry about zip implemntations
# that don't support 4GB; so we monkeypatch our way out of this
# historical baggage to get working <= 4GB PEXes even on Python 2.7.
#
# See: https://github.com/python/cpython/issues/43003
setattr(zipfile, "ZIP64_LIMIT", (1 << 32) - 1)


class ZipFileEx(ZipFile):
"""A ZipFile that works around several issues in the stdlib.

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