Unnecessary downloading of dependencies when they are constrained #9232
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type: bug
A confirmed bug or unintended behavior
Comments
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CC: @pradyunsg |
This was referenced Dec 6, 2020
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Fix proposed in #9241. |
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Cool! |
bors bot
referenced
this issue
in duckinator/emanate
Dec 15, 2020
204: Update pip to 20.3.3 r=duckinator a=pyup-bot This PR updates [pip](https://pypi.org/project/pip) from **20.3.1** to **20.3.3**. <details> <summary>Changelog</summary> ### 20.3.3 ``` =================== Bug Fixes --------- - Revert "Skip candidate not providing valid metadata", as that caused pip to be overeager about downloading from the package index. (`9264 <https://github.com/pypa/pip/issues/9264>`_) ``` ### 20.3.2 ``` =================== Features -------- - New resolver: Resolve direct and pinned (``==`` or ``===``) requirements first to improve resolver performance. (`9185 <https://github.com/pypa/pip/issues/9185>`_) - Add a mechanism to delay resolving certain packages, and use it for setuptools. (`9249 <https://github.com/pypa/pip/issues/9249>`_) Bug Fixes --------- - New resolver: The "Requirement already satisfied" log is not printed only once for each package during resolution. (`9117 <https://github.com/pypa/pip/issues/9117>`_) - Fix crash when logic for redacting authentication information from URLs in ``--help`` is given a list of strings, instead of a single string. (`9191 <https://github.com/pypa/pip/issues/9191>`_) - New resolver: Correctly implement PEP 592. Do not return yanked versions from an index, unless the version range can only be satisfied by yanked candidates. (`9203 <https://github.com/pypa/pip/issues/9203>`_) - New resolver: Make constraints also apply to package variants with extras, so the resolver correctly avoids backtracking on them. (`9232 <https://github.com/pypa/pip/issues/9232>`_) - New resolver: Discard a candidate if it fails to provide metadata from source, or if the provided metadata is inconsistent, instead of quitting outright. (`9246 <https://github.com/pypa/pip/issues/9246>`_) Vendored Libraries ------------------ - Update vendoring to 20.8 Improved Documentation ---------------------- - Update documentation to reflect that pip still uses legacy resolver by default in Python 2 environments. (`9269 <https://github.com/pypa/pip/issues/9269>`_) ``` </details> <details> <summary>Links</summary> - PyPI: https://pypi.org/project/pip - Changelog: https://pyup.io/changelogs/pip/ - Homepage: https://pip.pypa.io/ </details> 205: Update pytest to 6.2.1 r=duckinator a=pyup-bot This PR updates [pytest](https://pypi.org/project/pytest) from **6.1.2** to **6.2.1**. *The bot wasn't able to find a changelog for this release. [Got an idea?](https://github.com/pyupio/changelogs/issues/new)* <details> <summary>Links</summary> - PyPI: https://pypi.org/project/pytest - Homepage: https://docs.pytest.org/en/latest/ </details> Co-authored-by: pyup-bot <[email protected]>
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When we try to install 1.10.14rc1 release of Airflow with fully consistent set of requirements, At least google-cloud-bigquery and oauthlib libraries are needlessly downloaded (all versions) despite being properly constrained in https://github.com/apache/airflow/blob/constraints-1.10.14/constraints-3.6.txt
If you look to the file you will see:
google-cloud-bigquery==2.5.0oauthlib==3.1.0Running it with old resolver or pip 20.2.4 works perfectly fine:
When I run
pip checkI got:Then it fails with 20.3:
What we get (despite having both
google-cloud-bigquery==2.5.0:And then despite Having
oauthlib==3.1.0in the constrains, we get:And installation crashes here. This crash was originally raised in #9203 and it is likely workarounded (not solved yet - this is only possible because we asked oauthlib maintainers to yank the release and they kindly agreed) in #9226 .
I would love to know when we can expect fix to that.
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