The answers to this question seemed to ignore the --save-dev part. What is pip's equivalent of `npm install package --save-dev`?
I am using pipenv and have several packages that I only want to install during local development (e.g. pytest, unittest, matplotlib).
How can I achieve this using pipenv? I can't see anything about that on the manual page.
You do can achieve this through pipenv: https://pipenv-fork.readthedocs.io/en/latest/basics.html#pipenv-install
You can use pipenv install --dev whatever.
But actually I will not recommend pipenv as it handles locking very slowly. Which makes it almost useless.