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Title: [3.10] gh-101754: Document that Windows converts keys in `os.environ` to uppercase (GH-101840) by miss-islington · Pull Request #102393 · python/cpython · GitHub

Open Graph Title: [3.10] gh-101754: Document that Windows converts keys in `os.environ` to uppercase (GH-101840) by miss-islington · Pull Request #102393 · python/cpython

X Title: [3.10] gh-101754: Document that Windows converts keys in `os.environ` to uppercase (GH-101840) by miss-islington · Pull Request #102393 · python/cpython

Description: (cherry picked from commit 4e7c0cb) Co-authored-by: Owain Davies 116417456+OTheDev@users.noreply.github.com Issue: Document that os.environ forcibly upper-cases keys on case-insensitive OSs #101754

Open Graph Description: (cherry picked from commit 4e7c0cb) Co-authored-by: Owain Davies 116417456+OTheDev@users.noreply.github.com Issue: Document that os.environ forcibly upper-cases keys on case-insensitive OSs #101754

X Description: (cherry picked from commit 4e7c0cb) Co-authored-by: Owain Davies 116417456+OTheDev@users.noreply.github.com Issue: Document that os.environ forcibly upper-cases keys on case-insensitive OSs #101754

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