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https://issues.apache.org/jira/browse/FLINK-23948?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Huang Xingbo updated FLINK-23948:
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Component/s: Documentation
> Python Client Executable priority incorrect for PYFLINK_CLIENT_EXECUTABLE
> environment variable
> ----------------------------------------------------------------------------------------------
>
> Key: FLINK-23948
> URL: https://issues.apache.org/jira/browse/FLINK-23948
> Project: Flink
> Issue Type: Bug
> Components: API / Python, Documentation
> Reporter: Mika Naylor
> Assignee: Huang Xingbo
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.13.0, 1.14.0
>
>
> The
> [documentation|https://ci.apache.org/projects/flink/flink-docs-master/docs/dev/python/python_config/#python-client-executable]
> for configuring the python client executable states:
> {quote}The priority is as following:
> 1. the command line option "-pyclientexec";
> 2. the environment variable PYFLINK_CLIENT_EXECUTABLE;
> 3. the configuration 'python.client.executable' defined in flink-conf.yaml
> {quote}
> I set \{{python.client.executable}} to point to Python 3.6, and submitted a
> job that contained Python 3.8 syntax. Running the job normally results in a
> Syntax Error as expected, and the \{{pyclientexec}} and
> \{{pyClientExecutable}} CLI flags let me override this setting and point to
> Python 3.8. However, setting the \{{PYFLINK_CLIENT_EXECUTABLE}} *did not
> overwrite the \{{python.client.executable}} setting*.
> {code:bash}
> export PYFLINK_CLIENT_EXECUTABLE=/usr/bin/python3.8
> ./bin/flink run --python examples/python/table/batch/python38_test.py
> {code}
> Still used Python 3.6 as the Python client interpreter.
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