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Title: gh-149879: Fix test_tarfile on Cygwin by vstinner · Pull Request #149897 · python/cpython · GitHub

Open Graph Title: gh-149879: Fix test_tarfile on Cygwin by vstinner · Pull Request #149897 · python/cpython

X Title: gh-149879: Fix test_tarfile on Cygwin by vstinner · Pull Request #149897 · python/cpython

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Open Graph Description: On Cygwin, there is no root user (uid 0). Issue: Enhance Cygwin support #149879

X Description: On Cygwin, there is no root user (uid 0). Issue: Enhance Cygwin support #149879

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Fix also test_realpath_limit_attack()https://github.com/python/cpython/pull/149897/commits/2e68342c7b9c4eb79dfa5a09337a84a66c15ac8a
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Revert useless changehttps://github.com/python/cpython/pull/149897/commits/22b4e785e85891d84e5507b64d4b8478ddf44b3e
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