https://pypi.org/project/diffoscope/ The first failure is when the interpreter selected is python2 (#!/usr/bin/env python) and the script attempts to parse diffoscopes' __init__.py which does not specify an encoding (not required in python3) and has a copyright symbol in a comment: ``` Traceback (most recent call last): File "./utils/scanpypi", line 754, in <module> main() File "./utils/scanpypi", line 702, in main package.load_setup() File "./utils/scanpypi", line 302, in load_setup setup = imp.load_module('setup', s_file, s_path, s_desc) File "/tmp/scanpypi-2xcRWc/python-diffoscope/diffoscope-166/setup.py", line 6, in <module> File "/tmp/scanpypi-2xcRWc/python-diffoscope/diffoscope-166/diffoscope/__init__.py", line 4 SyntaxError: Non-ASCII character '\xc2' in file /tmp/scanpypi-2xcRWc/python-diffoscope/diffoscope-166/diffoscope/__init__.py on line 4, but no encoding declared; see http://python.org/dev/peps/pep-0263/ for details ``` The second issue is if I force it to use python3 to get around the previous issue, diffoscope's setup.py contains a explicit check for python3 > 3.7 which fails out the scanpypi script
Regarding the first issue, I guess we could change scanpypi to use python3 explicitly. Maybe it will break with some Python modules that have a python2-only setup.py, but it should really be rare these days. Regarding the second issue, I don't see what we can do. If I remember correctly how scanpypi works, it works by running the setup.py, so if the setup.py has some requirement on a recent Python version... there's not much we can do about it. You could for example do: $ make host-python3 $ export PATH=$(pwd)/output/host/bin:$PATH $ ./utils/scanpipy and that should use the python3 built by Buildroot, which is recent enough.
Conrad, All, The first half of the issue is now supposedly fixed with commit ee8b680816 by Thomas: https://git.buildroot.org/buildroot/commit/?id=ee8b6808169e1e61b4318b44fbc706ec888c605d And as Thomas said, we can't do much about the second half, so I'm closing this as fixed. Thanks for the report! Regards, Yann E. MORIN.