Merge #158

158: Update pip to 20.2.1 r=duckinator a=pyup-bot


This PR updates [pip](https://pypi.org/project/pip) from **20.2** to **20.2.1**.



<details>
  <summary>Changelog</summary>
  
  
   ### 20.2.1
   ```
   ===================

Features
--------

- Ignore require-virtualenv in ``pip list`` (`8603 &lt;https://github.com/pypa/pip/issues/8603&gt;`_)

Bug Fixes
---------

- Correctly find already-installed distributions with dot (``.``) in the name
  and uninstall them when needed. (`8645 &lt;https://github.com/pypa/pip/issues/8645&gt;`_)
- Trace a better error message on installation failure due to invalid ``.data``
  files in wheels. (`8654 &lt;https://github.com/pypa/pip/issues/8654&gt;`_)
- Fix SVN version detection for alternative SVN distributions. (`8665 &lt;https://github.com/pypa/pip/issues/8665&gt;`_)
- New resolver: Correctly include the base package when specified with extras
  in ``--no-deps`` mode. (`8677 &lt;https://github.com/pypa/pip/issues/8677&gt;`_)
- Use UTF-8 to handle ZIP archive entries on Python 2 according to PEP 427, so
  non-ASCII paths can be resolved as expected. (`8684 &lt;https://github.com/pypa/pip/issues/8684&gt;`_)

Improved Documentation
----------------------

- Add details on old resolver deprecation and removal to migration documentation. (`8371 &lt;https://github.com/pypa/pip/issues/8371&gt;`_)
- Fix feature flag name in docs. (`8660 &lt;https://github.com/pypa/pip/issues/8660&gt;`_)
   ```
   
  
</details>


 

<details>
  <summary>Links</summary>
  
  - PyPI: https://pypi.org/project/pip
  - Changelog: https://pyup.io/changelogs/pip/
  - Homepage: https://pip.pypa.io/
</details>



Co-authored-by: pyup-bot <[email protected]>

setup.cfg

@@ -35,7 +35,7 @@ tests_require =
 [options.extras_require]
 # FIXME: This name seems wrong, but I can't think of a better one atm.
 build =
-    pip==20.2
+    pip==20.2.1
     setuptools==49.2.1
     wheel==0.34.2