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https://issues.apache.org/jira/browse/AIRFLOW-3009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16786901#comment-16786901
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ASF subversion and git services commented on AIRFLOW-3009:
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Commit 231e4c44af0adfcf6aca8b9157b3c950a12897b1 in airflow's branch
refs/heads/v1-10-stable from Francis Lalonde
[ https://gitbox.apache.org/repos/asf?p=airflow.git;h=231e4c4 ]
[AIRFLOW-3009] Import Hashable from collection.abc to fix Python 3.7
deprecation warning (#3849)
> Python 3.7 import collections.abc deprecation warning
> ------------------------------------------------------
>
> Key: AIRFLOW-3009
> URL: https://issues.apache.org/jira/browse/AIRFLOW-3009
> Project: Apache Airflow
> Issue Type: Bug
> Components: core
> Affects Versions: 2.0.0
> Environment: Arch Linux, Python 3.7
> Reporter: Francis Lalonde
> Priority: Minor
>
> After pip-installing Airflow from source, the following warning message
> appears upon entering any airflow command from the prompt:
> {{/usr/lib/python3.7/site-packages/airflow/models.py:29: DeprecationWarning:
> Using or importing the ABCs from 'collections' instead of from
> 'collections.abc' is deprecated, and in 3.8 it will stop working}}{{from
> collections import namedtuple, defaultdict, Hashable}}
>
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