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pythonpython-3.xpippython-poetry

Pip install a package in a way that it gets not listed in requirements.txt

Is it possible to install a pip package in a way so that it gets not listed when doing pip freeze > requirements.txt?

I am thinkging of an equivalent to: poetry add --dev which adds (installs) a package as a development dependency, but it does not appear in dependency list.

Is there a way in pip to do something similar?

Solution

  • What you want is pipenv. There are ways of making RStudio work with pipenv (link to an article). This allows both complete package control, python version specification for a project as well as virtualenv, all in one. Otherwise, you'd have to maintain your requirements.txt file manually, and further down the line use a constraints.txt file, also.

    Think of pipenv files as what yarn.lock files (JS) vs package.json file + some extra sweet features.

    You can use pipenv to generate a requirements.txt file by doing:

    pipenv lock -r > requirements.txt

    While you can add/install packages in development mode by:

    pipenv install --dev <mypackage>