python install_error ai_generated true

ERROR: THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS FILE. If you have updated the package versions, please update the hashes. Expected sha256 3f7a... Got a91c...

ID: python/pip-hash-mismatch-downloaded-wheel

Also available as: JSON · Markdown · 中文
80%Fix Rate
88%Confidence
0Evidence
2024-07-22First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
pip>=21.0 active — — —

Root Cause

A `--hash` pin in requirements.txt does not match the hash of the downloaded artifact. Causes: package was re-uploaded, hash was computed on a different wheel (platform tag), or the artifact was tampered with.

generic

中文

requirements.txt 中的 `--hash` 固定值与下载产物的哈希不匹配。原因：包被重新上传、哈希基于不同 wheel（平台标签）计算，或产物被篡改。

Workarounds

  1. 90% success 
    Regenerate hashes for the exact artifacts you intend to install:

pip download --no-deps --dest /tmp/wheels <pkg>==<ver>
pip hash /tmp/wheels/<pkg>-<ver>-*.whl

Update requirements.txt with the new sha256.
  2. 85% success 
    Use pip-tools to keep hashes in sync automatically:

pip install pip-tools
pip-compile --generate-hashes requirements.in
pip-sync requirements.txt

Dead Ends

Common approaches that don't work:

  1. 90% fail

    pip still enforces --hash pins; --no-deps and --ignore-installed do not bypass hash verification.

  2. 40% fail

    Removes supply-chain protection and defeats the purpose of the pinned hash; acceptable only as a temporary local debug step.