[polyrand]

I fully agree. But I see editing the file manually an advantage. I can pip install whatever I want and then I only need to worry about having a clean requirements.in file.

With that, I know the compiled requirements.txt will only have what I need. Now it is just pip install -r requirements.txt or pip-sync.

[mumblemumble]

That's a very good point. I don't think it had even occurred to me that it would be more difficult with pipenv or poetry. But, admittedly, I haven't made it far into either of them - a little noodling around, just enough to figure out that they don't really address any pain points for me.