How to Check Python Package Dependencies

Sometimes you may need to find out the dependencies of certain Python packages before installing them on your system. Here is how to quickly check Python package dependencies.

How to Check Python Package Dependencies

There are several ways to get python package dependencies – using pip and using pipedeptree.

1. Using pip

You can easily get package dependencies in python using pip show command. Here is its syntax.

$ pip show [package_name]

Here is an example to get package dependencies of Tornado package.

$ pip show tornado
---
Name: tornado
Version: 4.1
Location: *****
Requires: certifi, backports.ssl-match-hostname

2. Using pipdeptree

You can also use pipedeptree package to get dependency information. Here is the command to install it.

$ pip install pipedeptree

Once it is installed, you can use this command to get package dependencies all or specific packages on your system. Here is a sample output.

$ pipedeptree
flake8==2.5.0
  - mccabe [required: >=0.2.1,<0.4, installed: 0.3.1]
  - pep8 [required: !=1.6.0,>=1.5.7,!=1.6.1,!=1.6.2, installed: 1.5.7]
  - pyflakes [required: >=0.8.1,<1.1, installed: 1.0.0]
ipdb==0.8
  - ipython [required: >=0.10, installed: 1.1.0]

That’s it. In this short article, we have learnt how to easily get package dependencies in Python.

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