[GitHub] [pulsar] candlerb commented on issue #5518: python functions cannot find python3 interpreter

[GitBox <gi...@apache.org>]

candlerb commented on issue #5518: python functions cannot find python3 interpreter
URL: https://github.com/apache/pulsar/issues/5518#issuecomment-548721196
 
 
   How about adding a setting to broker.conf / standalone.conf? e.g.
   
   ```
   python_interpreter=/usr/bin/python
   ```
   
   However I notice some places where searching in  `$PATH` search is currently required:
   
   ```
   ./pulsar-client-cpp/docker/Dockerfile:ENV PATH="/opt/python/${PYTHON_SPEC}/bin:${PATH}"
   ./build/docker/Dockerfile:ENV PATH "$PATH:/usr/local/rvm/bin"
   ```
   
   So I suggest:
   
   1. Default is `python_interpreter=python`
   2. If the setting starts with slash, it's an absolute path (avoids some edge-case security issues)
   3. Otherwise search for it in `$PATH` as today

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