Pip¶

A longer introduction to using Pip 🍎¶

pip is the offical package manager of PyPi - the Python Package Index.

https://pip.pypa.io/en/stable/

check to see if you already have it (you almost certainly do):

$ pip --version

if not installed, follow directions in docs - https://pip.pypa.io/en/stable/installing/#installing-with-get-pip-py

Upgrade¶

by running

$ pip install --upgrade pip

upgrading: https://pip.pypa.io/en/stable/user_guide/#only-if-needed-recursive-upgrade

NOTE: if you are using pipenv you won’t usually need any of the below

List installed packages¶

by running

$ pip list

OR be a cool guy and use pipdeptree

Install a package¶

Like so

$ pip install <package_name>

Install a specific version of a package¶

Thusly

$ pip install Flask==0.10.1

Update a package¶

::: $ pip install –upgrade <package_name>

Uninstall a package¶

::: $ pip uninstall <package_name>

Some useful pip packages for development 📦¶

pipdeptree: a much more helpful pip list¶

Shows not only packages installed, but what package installed that package and package requirements and versions

example:

  Flask==0.12
          - click [required: >=2.0, installed: 6.7]
          - itsdangerous [required: >=0.21, installed: 0.24]
          - Jinja2 [required: >=2.4, installed: 2.9.5]
- MarkupSafe [required: >=0.23, installed: 1.0]
          - Werkzeug [required: >=0.7, installed: 0.12]
  pip-tools==1.9.0
          - click [required: >=6, installed: 6.7]
          - first [required: Any, installed: 2.0.1]
          - six [required: Any, installed: 1.10.0]
  pipdeptree==0.10.1
          - pip [required: >=6.0.0, installed: 9.0.1]

to install:

$ pip install pipdeptree

to use:

$ pipdeptree

OR do yourself a favor and alias it.