Changelog
### 21.1.3
```
===================
Bug Fixes
---------
- Remove unused optional ``tornado`` import in vendored ``tenacity`` to prevent old versions of Tornado from breaking pip. (`10020 <https://github.com/pypa/pip/issues/10020>`_)
- Require ``setup.cfg``-only projects to be built via PEP 517, by requiring an explicit dependency on setuptools declared in pyproject.toml. (`10031 <https://github.com/pypa/pip/issues/10031>`_)
```
Links
- PyPI: https://pypi.org/project/pip
- Changelog: https://pyup.io/changelogs/pip/
- Homepage: https://pip.pypa.io/
This PR updates pip from 21.1.2 to 21.1.3.
Changelog
### 21.1.3 ``` =================== Bug Fixes --------- - Remove unused optional ``tornado`` import in vendored ``tenacity`` to prevent old versions of Tornado from breaking pip. (`10020 <https://github.com/pypa/pip/issues/10020>`_) - Require ``setup.cfg``-only projects to be built via PEP 517, by requiring an explicit dependency on setuptools declared in pyproject.toml. (`10031 <https://github.com/pypa/pip/issues/10031>`_) ```Links
- PyPI: https://pypi.org/project/pip - Changelog: https://pyup.io/changelogs/pip/ - Homepage: https://pip.pypa.io/