Package: python3-grpc-tools
Version: 1.14.1-8
Severity: important
X-Debbugs-Cc: [email protected]
Hi,
I believe I have encountered a bug in the python3-grpc-tools package, while
working on packaging BuildStream 2.7.0 which depends on it at build-time.
I have seen all calls to the grpc_tools.command.build_package_protos method
failing with a Python TypeError, regardless of the argument. For example, with
an arbitrary path in a Python REPL:
```
theodore@localhost:~$ python3
Python 3.13.5 (main, Jun 25 2025, 18:55:22) [GCC 14.2.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> from grpc_tools import command
>>> command.build_package_protos("/tmp")
Traceback (most recent call last):
File "<python-input-1>", line 1, in <module>
command.build_package_protos("/tmp")
~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
File "/usr/lib/python3/dist-packages/grpc_tools/command.py", line 33, in
build_package_protos
well_known_protos_include = files('grpc_tools').joinpath('_proto')
~~~~~^^^^^^^^^^^^^^
TypeError: 'list' object is not callable
>>>
```
>From what I can tell, this is because of a syntax error in the upstream Python
code in Python 3.13:
https://sources.debian.org/src/python-grpc-tools/1.14.1-8/grpc_tools/command.py.
Looking at line 33, the files method from importlib is shadowed by
the files loop variable from line 27.
In my BuildStream packaging, I have worked around this with a patch to vendor
build_package_protos with the syntax error corrected:
https://salsa.debian.org/tti0/buildstream-fork/-/blob/tti0/buildstream-2/debian/patches/setup.py-Vendor-grpc_tools.command.build_package_protos.patch.
I'm quite new to the Debian project, though, so am
unsure whether such a patch would be appropriate in the python3-grpc-tools
packaging.
I have seen the same bug in both trixie and unstable.
Thank you and kind regards,
Theodore
-- System Information:
Debian Release: 13.4
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable-security'), (500, 'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 6.6.87.2-microsoft-standard-WSL2 (SMP w/12 CPU threads; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages python3-grpc-tools depends on:
ii libc6 2.41-12+deb13u2
ii libgcc-s1 14.2.0-19
ii libstdc++6 14.2.0-19
ii python3 3.13.5-1
ii python3-grpcio 1.51.1-6
ii python3-protobuf 3.21.12-11
python3-grpc-tools recommends no packages.
python3-grpc-tools suggests no packages.
-- no debconf information
