Prevent pip installs that start with pip install pip install

[MaddyGuthridge]

What's the problem this feature will solve?

When copying install commands, it is very easy to accidentally copy a command that already has pip install, meaning that pip will attempt to install pip and install. This isn't a massive issue since it's easy enough to pip uninstall install soon afterwards, but it's still a bit of a nuisance.

Describe the solution you'd like

If a command starts with pip install pip install, an error should be printed instead of proceeding with the action. Perhaps for the one-in-a-million case where it's intentional, we can prompt the user with an "If this was intentional, please run pip install install pip instead".

Alternative Solutions

I can't think of any - I think this is a pretty small quality of life improvement.

Additional context

$ pip install pip install python-dotenv
Requirement already satisfied: pip in ./.venv/lib/python3.10/site-packages (22.2.2)
Collecting install
  Using cached install-1.3.5-py3-none-any.whl (3.2 kB)
Collecting python-dotenv
  Downloading python_dotenv-0.21.0-py3-none-any.whl (18 kB)
Installing collected packages: python-dotenv, install
Successfully installed install-1.3.5 python-dotenv-0.21.0

Code of Conduct

• I agree to follow the PSF Code of Conduct.

[pradyunsg]

pypi/support#451

[MaddyGuthridge]

@pradyunsg to clarify I'm not suggesting that the install package be delisted - this is specifically a fix to address when people run pip install pip insatall ...

[pfmoore]

I don't think this is a common enough mistake to justify a special case error for it.

[MaddyGuthridge]

I've made it 3 times in the last week or so

[pradyunsg]

If you believe what I believe, that no one intentionally installs install, it’s quite a few people — ~30k downloads daily: https://pypistats.org/packages/install

[pradyunsg]

pypi/support#451 has been closed since the problematic package has been removed.