Isn't PyPI pronounced like: pie (food/π) + pea + eye ().

that is different from the french "pipi": pea + pea.

Sure. Now tell that to a bunch of immature college juniors. If you read the letters "pypi" in French, it sounds exactly like "pipi".

And wait until you learn what "bit" sounds like in French.

What does "bit" sound like in French?

The slang word for penis. "Megabit" and "gigabit" are endless sources of fun for the students.

Yep: https://pypi.org/help/#pronunciation

Once upon a time, it’s name was “cheese shop”. Good times