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Pipenv: The Python Package Manager

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Dependency Graphs

2:00 with Ken Alger

Need to know which package is dependent on another? Pipenv has a convenient graph feature to do just that.

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    Isn't Pipenv pretty impressive thus far? 0:00
    One last thing here that's pretty helpful. 0:03
    If you need to see what dependencies are reliant on one another, 0:05
    you can easily generate a dependency graph with Pipenv, pipenv graph. 0:10
    This shows the top level dependencies and which packages they depend on. 0:16
    graph can take a few flags, which can be helpful as well. 0:22
    Clear, we can get our graph back in JSON 0:27
    format with, pipenv graph --json. 0:32
    And if we run pipenv graph --reverse, 0:38
    We'll find the sub-dependencies first, and what is reliant on them. 0:45
    This can be very helpful when attempting to figure out dependency conflicts. 0:50
    Finally, there is a built-in security check that tests against PEP 508 0:54
    requirements and package safety. 0:58
    We do pipenv check. 1:03
    Whew, it all passed. 1:07
    Check the teacher's notes for more information on 508 requirements. 1:10
    Pretty nice, right? 1:14
    With adding Pipenv to your toolbox, 1:16
    you get the benefits of a streamlined development workflow, 1:18
    with virtual environment, dependency management, and security. 1:21
    We've looked at Pipfile and Pipfile.lock, to see how Pipenv 1:26
    separates abstract dependency declarations to manage our project environment. 1:31
    We also saw how to generate a dependency graph. 1:36
    Pipenv is a great tool to have in your Python toolkit. 1:40
    It allows pip and virtualenv to be consolidated into an easy-to-use, 1:43
    single interface. 1:47
    I would encourage you to try it out in your next project. 1:49
    Be sure to share your thoughts in the Treehouse community forum, or 1:53
    reach out to me on Twitter. 1:56
    Until next time, happy coding. 1:58

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