pip is the package installer for Python.
Often, when you run pip, especially the first time in a new virtual environment, you will see something like:
WARNING: You are using pip version 20.1.1; however, version 20.2 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.
And you should. Because 20.2 has a new dependency resolver.
Get in the habit, until October, of replacing pip install with pip install --use-feature=2020-resolver.
This flag is new in the 20.2 release.
This new pip dependency resolver is the result of a lot of work.
Five of the people involved with this work are joining the show today: Bernard Tyers, Nicole Harris, Paul Moore, Pradyun Gedam, and Tzu-ping Chung.
We talk about:
- pip dependency resolver changes
- user experience research and testing
- crafting good error messages
- efforts to improve the test suite
- testing pip with pytest
- some of the difficulties with testing pip
- working with a team on a large project
- working with a large code base
- bringing new developers into a large project
Special Guests: Bernard Tyers, Nicole Harris, Paul Moore, Pradyun Gedam, and Tzu-ping Chung.
Sponsored By:
Support Test & Code : Python Testing for Software Engineering
Links:
<p>pip is the package installer for Python. </p> <p>Often, when you run pip, especially the first time in a new virtual environment, you will see something like:</p> <blockquote> <p>WARNING: You are using pip version 20.1.1; however, version 20.2 is available.<br><br> You should consider upgrading via the 'python -m pip install --upgrade pip' command.</p> </blockquote> <p>And you should. Because 20.2 has a new dependency resolver.</p> <p>Get in the habit, until October, of replacing <code>pip install</code> with <code>pip install --use-feature=2020-resolver</code>.<br><br> This flag is new in the 20.2 release.</p> <p>This new pip dependency resolver is the result of a lot of work.<br><br> Five of the people involved with this work are joining the show today: Bernard Tyers, Nicole Harris, Paul Moore, Pradyun Gedam, and Tzu-ping Chung. </p> <p>We talk about: </p> <ul> <li>pip dependency resolver changes</li> <li>user experience research and testing</li> <li>crafting good error messages</li> <li>efforts to improve the test suite</li> <li>testing pip with pytest</li> <li>some of the difficulties with testing pip</li> <li>working with a team on a large project</li> <li>working with a large code base</li> <li>bringing new developers into a large project</li> </ul><p>Special Guests: Bernard Tyers, Nicole Harris, Paul Moore, Pradyun Gedam, and Tzu-ping Chung.</p><p>Sponsored By:</p><ul><li><a href="https://ift.tt/2JDHRTz" rel="nofollow">PyCharm Professional</a>: <a href="https://ift.tt/2JDHRTz" rel="nofollow">Try PyCharm Pro for 4 months and learn how PyCharm will save you time.</a> Promo Code: TESTANDCODE20</li></ul><p><a href="https://ift.tt/2tzXV5e" rel="payment">Support Test & Code : Python Testing for Software Engineering</a></p><p>Links:</p><ul><li><a href="https://ift.tt/1lousCZ" title="Changelog — pip 20.2 documentation" rel="nofollow">Changelog — pip 20.2 documentation</a> — Including --use-feature=2020-resolver</li><li><a href="https://ift.tt/1dWFsM1" title="pypa/pip: The Python package installer" rel="nofollow">pypa/pip: The Python package installer</a> — github repo</li><li><a href="https://ift.tt/2PfHpA2" title="testing pip - documentation" rel="nofollow">testing pip - documentation</a></li><li><a href="https://ift.tt/1gmce2W" title="pip - The Python Package Installer — pip 20.2 documentation" rel="nofollow">pip - The Python Package Installer — pip 20.2 documentation</a></li><li><a href="https://ift.tt/39U7FcW" title="Changes to the pip dependency resolver in 20.2" rel="nofollow">Changes to the pip dependency resolver in 20.2</a> — Changes to the pip dependency resolver in 20.2</li></ul>
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