http://bugzilla.opensuse.org/show_bug.cgi?id=1171013 Bug ID: 1171013 Summary: Protobuf bindings for Python 3 do not include C++ extension Classification: openSUSE Product: openSUSE Tumbleweed Version: Current Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Development Assignee: screening-team-bugs@suse.de Reporter: adam.reichold@t-online.de QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- It seems the Protobuf bindings for Python 3 do not include the CPython extension making use of the C++ library, but always use the pure Python implementation, i.e. running with PROTOCOL_BUFFERS_PYTHON_IMPLEMENTATION=cpp yields File "/usr/lib/python3.8/site-packages/google/protobuf/descriptor.py", line 47, in <module> from google.protobuf.pyext import _message ImportError: cannot import name '_message' from 'google.protobuf.pyext' (/usr/lib/python3.8/site-packages/google/protobuf/pyext/__init__.py) Installing protobuf via pip installs a prebuilt binary and that indeed seems to work with significantly improved performance but I would very much prefer to stick with the distribution package if it could be changed to include the CPython extension.
From what I found, Arch had a similar issue, c.f. https://bugs.archlinux.org/task/54959 which was fixed by passing --cpp_implementation to setup.py, c.f. https://git.archlinux.org/svntogit/packages.git/tree/trunk/PKGBUILD?h=packag...
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