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https://issues.apache.org/jira/browse/AIRFLOW-4900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jarek Potiuk resolved AIRFLOW-4900.
-----------------------------------
Resolution: Fixed
Fix Version/s: 2.0.0
> Incompatible version of Werkzeug after Flask upgrade
> ----------------------------------------------------
>
> Key: AIRFLOW-4900
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4900
> Project: Apache Airflow
> Issue Type: Bug
> Components: webserver
> Affects Versions: 1.10.3
> Reporter: Luqman Abdul Mushawwir
> Priority: Major
> Fix For: 2.0.0
>
>
> On July 5th morning UTC+7, Flask have released version 1.1.0, which will be
> used in airflow because we have requirements for flask as follows:
> 'flask>=1.0, <2.0'
> However, flask pinned their Werkzeug to "Werkzeug>=0.15" which is
> incompatible with airflow's Werkzeug ('werkzeug>=0.14.1, <0.15.0'), resulting
> to error when doing "from airflow import model":
> _ERROR: Failure: ImportError (No module named 'werkzeug.wrappers.json';
> 'werkzeug.wrappers' is not a package)_
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