[GitHub] [beam] Abacn commented on issue #22742: Import Error in Python on M1 Mac

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

Abacn commented on issue #22742:
URL: https://github.com/apache/beam/issues/22742#issuecomment-1218216468

   My understanding to this issue is that Beam is using some internal APIs of protobuf and the distributed protobuf release may not contain them depending on platforms. Have to do a compile installlation of protobuf. First install the sources
   
   ```
   brew install protobuf@3
   ```
   
   For me this installs to /opt/homebrew/Cellar/protobuf@3/3.20.1
   
   then set
   
   ```
   export CPPFLAGS="-I/opt/homebrew/Cellar/protobuf@3/3.20.1/include"
   export LDFLAGS="-L/opt/homebrew/Cellar/protobuf@3/3.20.1/lib"
   ```
   
   then install protobuf with
   
   ```
   pip install protobuf==3.20.1 --install-option="--cpp_implementation" --force
   ```
   
   then `python gen_protos.py` should work.
   
   This is only required when the user needs to compile beam from source. For the distributed beam releases the generated sources are included in release and the users do not need to do this.
   


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