On Windows, one cannot overwrite an executable file which is currently executing. That's, however, exactly what pip-sync might try to do at some points, and indeed the CI runs were failing due to that:
Attempting uninstall: pip-tools
Found existing installation: pip-tools 6.10.0
Uninstalling pip-tools-6.10.0:
Successfully uninstalled pip-tools-6.10.0
ERROR: Could not install packages due to an OSError: [WinError 5] Access is denied: 'C:\\Users\\runneradmin\\AppData\\Local\\Temp\\pip-uninstall-8ii4ro6b\\pip-sync.exe'
Consider using the `--user` option or check the permissions.
Traceback (most recent call last):
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\runpy.py", line 194, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\runpy.py", line 87, in _run_code
exec(code, run_globals)
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\Scripts\pip-sync.exe\__main__.py", line 7, in <module>
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\click\core.py", line 1130, in __call__
return self.main(*args, **kwargs)
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\click\core.py", line 1055, in main
rv = self.invoke(ctx)
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\click\core.py", line 1404, in invoke
return ctx.invoke(self.callback, **ctx.params)
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\click\core.py", line 760, in invoke
return __callback(*args, **kwargs)
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\piptools\scripts\sync.py", line 177, in cli
to_uninstall,
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\site-packages\piptools\sync.py", line 240, in sync
req_lines.append(format_requirement(ireq, hashes=ireq_hashes))
File "C:\hostedtoolcache\windows\Python\3.8.10\x64\lib\subprocess.py", line 516, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['C:\\hostedtoolcache\\windows\\Python\\3.8.10\\x64\\python.exe', '-m', 'pip', 'install', '-r', 'C:\\Users\\RUNNER~1\\AppData\\Local\\Temp\\tmpbe8tk3qm']' returned non-zero exit status 1.
Solve this by not executing pip-sync directly, but instead going through the Python interpreter and invoking the module from there.
I think this used to work previously because there was (probably) no version change to take care of. Now there's apparently some discrepancy.
On Windows, one cannot overwrite an executable file which is currently executing. That's, however, exactly what
pip-syncmight try to do at some points, and indeed the CI runs were failing due to that:Solve this by not executing
pip-syncdirectly, but instead going through the Python interpreter and invoking the module from there.I think this used to work previously because there was (probably) no version change to take care of. Now there's apparently some discrepancy.
Bug: https://github.com/jazzband/pip-tools/issues/478