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Title: gh-132952: Import _io instead of io at startup by JelleZijlstra · Pull Request #132957 · python/cpython · GitHub

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Description: Issue: gh-132952

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gh-132952: Import _io instead of io at startup https://github.com/python/cpython/pull/132957/files#top
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dac50cc gh-132952: Import _io instead of io at startup JelleZijlstra Apr 25, 2025 https://github.com/python/cpython/pull/132957/commits/dac50cc5fc1e59331856e4c667d05bfb028fdcd9
e3432b7 Also lazy-import in site JelleZijlstra Apr 26, 2025 https://github.com/python/cpython/pull/132957/commits/e3432b72498ab1cad5007d5bb3a2f298c557bc8a
ebe8890 blurb JelleZijlstra Apr 26, 2025 https://github.com/python/cpython/pull/132957/commits/ebe8890440dae062081b88b6c31995f48647971c
c3cfa67 Set the __module__ of UnsupportedOperation even if io is not imported JelleZijlstra Apr 26, 2025 https://github.com/python/cpython/pull/132957/commits/c3cfa671f1ff319e01e6bf07d18ac419ff846aa4
6c40c3a add test JelleZijlstra Apr 26, 2025 https://github.com/python/cpython/pull/132957/commits/6c40c3a6d928fc3534d26be1d0cf000021346e83
71bfe4d Drop 19% claim JelleZijlstra Apr 28, 2025 https://github.com/python/cpython/pull/132957/commits/71bfe4d78fbe806846f0c63d3eee4aaafb9dc4cc
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