Description

brettcannon

opened on Feb 9, 2023

Issue body actions

Documentation

os.environ docs don't mention that the keys get upper-cased automatically on e.g. Windows.

Linked PRs

• gh-101754: document that on Windows, keys in os.environ are converted to uppercase #101840
• [3.10] gh-101754: Document that Windows converts keys in os.environ to uppercase (GH-101840) #102393
• [3.11] gh-101754: Document that Windows converts keys in os.environ to uppercase (GH-101840) #102394

Reacted by Kartik Raj

Reacted by Kartik Raj

Activity

1. brettcannon

   added

   docsDocumentation in the Doc dirDocumentation in the Doc dir

   on Feb 9, 2023
2. brettcannon commented on Feb 9, 2023

   

   brettcannon

   on Feb 9, 2023

   MemberAuthor

   More actions

   This came up when using Python to read the environment then trying to merge the results with Node's environment variable APIs which do not normalize.
3. karrtikr commented on Feb 9, 2023

   

   karrtikr

   on Feb 9, 2023

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   Source code:

   cpython/Lib/os.py

   Line 755 in f1f3af7

   return encode(key).upper()
4. eryksun commented on Feb 9, 2023

   

   eryksun

   on Feb 9, 2023

   Contributor

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   Note that it wouldn't be hard to make os.environ case insensitive but case preserving, starting with Python 3.12 or 3.13. I discussed a possible implementation in issue #73010.
5. OTheDev commented on Feb 11, 2023

   

   OTheDev

   on Feb 11, 2023

   Contributor

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   Thoughts on the following (third note) suggested fix?

   

   EDIT: on second thought, I think I prefer

   
6. zooba

   closed this as completedin #101840on Mar 3, 2023
7. zooba

   added a commit that references this issue on Mar 3, 2023

   gh-101754: Document that Windows converts keys in `os.environ` to upp…

   4e7c0cb
8. miss-islington

   added 4 commits that reference this issue on Mar 3, 2023

   pythongh-101754: Document that Windows converts keys in `os.environ` …

   755862e

   pythongh-101754: Document that Windows converts keys in `os.environ` …

   6082c4f

   gh-101754: Document that Windows converts keys in `os.environ` to upp…

   3d88b4e

   gh-101754: Document that Windows converts keys in `os.environ` to upp…

   32a738e
9. carljm

   added a commit that references this issue on Mar 4, 2023

   Merge branch 'main' into nodeaddict

   a31af32

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