[Python] libprotobuf-generated exception when importing apache_beam

import apache_beam as beam
/Users/***/.local/share/virtualenvs/beam-etl-ims6DitU/lib/python3.7/site-packages/apache_beam/__init__.py:84: UserWarning: Some syntactic constructs of Python 3 are not yet fully supported by Apache Beam.
  'Some syntactic constructs of Python 3 are not yet fully supported by '
[libprotobuf ERROR google/protobuf/descriptor_database.cc:58] File already exists in database: 
[libprotobuf FATAL google/protobuf/descriptor.cc:1370] CHECK failed: GeneratedDatabase()->Add(encoded_file_descriptor, size): 
libc++abi.dylib: terminating with uncaught exception of type google::protobuf::FatalException: CHECK failed: GeneratedDatabase()->Add(encoded_file_descriptor, size):