[BUG] Curly brackets in pathname on VMware virtualenv mess up build process

[veenstrajelmer]

setuptools version

setuptools==69.0.1 (also with the newest 69.0.2)

Python version

Python 3.11

OS

Windows 11 x64 on VM

Additional environment information

No response

Description

When using python -m build on a VMware virtual machine the f-string solving is caught off guard since the path contains curly brackets: "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\[...]". I think we can agree that this is an improper and inconvenient pathname, but I wondered if it can be solved in build anyway.

Expected behavior

successfully build the package, just like it happens on a non-virtual machine.

How to Reproduce

python -m build

Output

Traceback (most recent call last):
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\util.py", line 212, in subst_vars
    return _subst_compat(s).format_map(lookup)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
KeyError: '45c63495-0000-0000-0000-100000000000'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Users\veenstra\Anaconda3\envs\dfm_tools_py311\Lib\site-packages\pyproject_hooks\_in_process\_in_process.py", line 353, in <module>
    main()
  File "C:\Users\veenstra\Anaconda3\envs\dfm_tools_py311\Lib\site-packages\pyproject_hooks\_in_process\_in_process.py", line 335, in main
    json_out['return_val'] = hook(**hook_input['kwargs'])
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\veenstra\Anaconda3\envs\dfm_tools_py311\Lib\site-packages\pyproject_hooks\_in_process\_in_process.py", line 251, in build_wheel
    return _build_backend().build_wheel(wheel_directory, config_settings,
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\build_meta.py", line 404, in build_wheel
    return self._build_with_temp_dir(
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\build_meta.py", line 389, in _build_with_temp_dir
    self.run_setup()
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\build_meta.py", line 311, in run_setup
    exec(code, locals())
  File "<string>", line 1, in <module>
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\__init__.py", line 103, in setup
    return distutils.core.setup(**attrs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\core.py", line 185, in setup
    return run_commands(dist)
           ^^^^^^^^^^^^^^^^^^
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\core.py", line 201, in run_commands
    dist.run_commands()
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\dist.py", line 969, in run_commands
    self.run_command(cmd)
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\dist.py", line 963, in run_command
    super().run_command(command)
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\dist.py", line 988, in run_command
    cmd_obj.run()
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\wheel\bdist_wheel.py", line 404, in run
    self.run_command("install")
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\cmd.py", line 318, in run_command
    self.distribution.run_command(command)
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\dist.py", line 963, in run_command
    super().run_command(command)
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\dist.py", line 987, in run_command
    cmd_obj.ensure_finalized()
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\cmd.py", line 111, in ensure_finalized
    self.finalize_options()
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\command\install.py", line 55, in finalize_options
    orig.install.finalize_options(self)
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\command\install.py", line 439, in finalize_options
    self.expand_basedirs()
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\command\install.py", line 619, in expand_basedirs
    self._expand_attrs(['install_base', 'install_platbase', 'root'])
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\command\install.py", line 613, in _expand_attrs
    val = subst_vars(val, self.config_vars)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\SnapVolumesTemp\MountPoints\{45c63495-0000-0000-0000-100000000000}\{79DE0690-9470-4166-B9EE-4548DC416BBD}\SVROOT\Users\veenstra\AppData\Local\Temp\build-env-zvi13qdy\Lib\site-packages\setuptools\_distutils\util.py", line 214, in subst_vars
    raise ValueError(f"invalid variable {var}")
ValueError: invalid variable '45c63495-0000-0000-0000-100000000000'

ERROR Backend subprocess exited when trying to invoke build_wheel

[abravalheri]

Help with that is appreciated. I'm happy to discuss PRs, but I suspect that such PRs have to be discussed at the level of the pypa/distutils repository first. It might be wise to discuss fixes with the pypa/distutils maintainers before jumping into implementation.

[veenstrajelmer]

Ok, thanks @abravalheri. Could you maybe tag one of their developers or forward the issue to them via another method? If it is indeed something for distutils, an issue can be created there instead.

[abravalheri]

@jaraco can probably advise if pypa/distutils would accept any work on this topic.

[jaraco]

I've transferred the issue to the distutils project. I only just today got around to reading it.

I absolutely agree this is a bug and should be fixed.

We need to identify where the {var} substitution is happening and ensure it doesn't happen for legitimate filenames (if possible).