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Switch to using sha1 for hashes #8251

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Merged
merged 1 commit into from
Jan 7, 2020
Merged

Switch to using sha1 for hashes #8251

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4 changes: 3 additions & 1 deletion mypy/util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -476,7 +476,9 @@ def hash_digest(data: bytes) -> str:
accidental collision, but we don't really care about any of the
cryptographic properties.
"""
return hashlib.md5(data).hexdigest()
# Once we drop Python 3.5 support, we should consider using
# blake2b, which is faster.
return hashlib.sha256(data).hexdigest()


class FancyFormatter:
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