What I actually use at work is every version of Python from 3.8 on (though once we get out of crunch on some other things, I think I'll be able to sweep out everything up to at least 3.12), with venv/pip, and VSCode (with black for formatting and pylance for typechecking), and deployment is github->AWS CodePipeline->AWS Lambda for most things (and everything else is tools for the team where deployment is "clone the repo".)
If I had my choice, I'd switch environment and package management to uv.
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What I actually use at work is every version of Python from 3.8 on (though once we get out of crunch on some other things, I think I'll be able to sweep out everything up to at least 3.12), with venv/pip, and VSCode (with black for formatting and pylance for typechecking), and deployment is github->AWS CodePipeline->AWS Lambda for most things (and everything else is tools for the team where deployment is "clone the repo".)
If I had my choice, I'd switch environment and package management to uv.