[issue46861] os.environ forces variable names to upper case on Windows

Change by Eryk Sun : -- resolution: -> duplicate stage: -> resolved status: open -> closed superseder: -> os.environ should preserve the case of the OS keys ? ___ Python tracker

[issue46861] os.environ forces variable names to upper case on Windows

New submission from benrg : The Windows functions that deal with environment variables are case-insensitive and case-preserving, like most Windows file systems. Many environment variables are conventionally written in all caps, but others aren't, such as `ProgramData`, `PSModulePath`, and