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Title: Document that `os.environ` forcibly upper-cases keys on case-insensitive OSs · Issue #101754 · python/cpython · GitHub

Open Graph Title: Document that `os.environ` forcibly upper-cases keys on case-insensitive OSs · Issue #101754 · python/cpython

X Title: Document that `os.environ` forcibly upper-cases keys on case-insensitive OSs · Issue #101754 · python/cpython

Description: Documentation os.environ docs don't mention that the keys get upper-cased automatically on e.g. Windows. Linked PRs gh-101840 gh-102393 gh-102394

Open Graph Description: Documentation os.environ docs don't mention that the keys get upper-cased automatically on e.g. Windows. Linked PRs gh-101840 gh-102393 gh-102394

X Description: Documentation os.environ docs don't mention that the keys get upper-cased automatically on e.g. Windows. Linked PRs gh-101840 gh-102393 gh-102394

Opengraph URL: https://github.com/python/cpython/issues/101754

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Document that os.environ forcibly upper-cases keys on case-insensitive OSshttps://github.com/python/cpython/issues/101754#top
#101840https://github.com/python/cpython/pull/101840
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on Feb 9, 2023https://github.com/python/cpython/issues/101754#issue-1578387134
os.environ docshttps://docs.python.org/3/library/os.html?highlight=os%20environ#os.environ
gh-101754: document that on Windows, keys in os.environ are converted to uppercase #101840https://github.com/python/cpython/pull/101840
[3.10] gh-101754: Document that Windows converts keys in os.environ to uppercase (GH-101840) #102393https://github.com/python/cpython/pull/102393
[3.11] gh-101754: Document that Windows converts keys in os.environ to uppercase (GH-101840) #102394https://github.com/python/cpython/pull/102394
docsDocumentation in the Doc dirhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22docs%22
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