Pants/Python/ProtoBuf

The repo tries to use Pants 2.0 to build/test a Python/ProtoBuf example.

Note: This repo uses a pre-release version of Pants 2.0 which requires the following environment variable to be exported: PANTS_SHA=6c90064f91442feb55ced0f982676a1d1f99c6c5

Progress

• Build and run .pex:
  • ./pants binary src/py/myorg/mypkg:mypkg-bin
  • ./dist/mypkg-bin.pex
• Run tests:
  • ./pants test ::
• Auto-format code:
  • ./pants fmt ::
• Lint code with Pylint/black/isort:
  • ./pants lint ::
• Typechecking with mypy:
  • ./pants typecheck ::

Open Issues

• gRPC support when compiling .proto files:
  • Related issue: pantsbuild/pants#10497
• mypy-protobuf support when compiling .proto files:
  • Related issue: pantsbuild/pants#10497
• Build .whl file:

  $ ./pants setup-py --args="bdist_wheel" src/py/myorg
  13:35:12 [ERROR] 1 Exception encountered:
  
    NoOwnerError: No exported target owner found for src/proto/myorg/proto
  
  (Use --print-exception-stacktrace to see more error details.)