validation message indicates Windows as the platform whereas the offending character is universal

[matanox]

Thank you for this package!

It seems that the value for target-platform below should be not just Windows, but also Linux, or universal. The code is running on linux, producing this justified validation error, only the target-platform field is confusing:

    validate_filename(name)
  File "lib/python3.10/site-packages/pathvalidate/_filename.py", line 318, in validate_filename
    ).validate(filename)
  File "/lib/python3.10/site-packages/pathvalidate/_filename.py", line 191, in validate
    self.__validate_win_filename(unicode_filename)
  File "python3.10/site-packages/pathvalidate/_filename.py", line 221, in __validate_win_filename
    raise InvalidCharError(
pathvalidate.error.InvalidCharError: [PV1100] invalid characters found: invalids=('/'), value='foo / 𝜋', target-platform=Windows

Or is it necessary to specify the target platforms before calling this api?

(I would humbly like to reject for all three popular platforms in my case)

[thombashi]

Thank you for your report.
That is a bug.
The error message, in this case, should be like the following:

[PV1100] invalid characters found: invalids=('/'), value='foo / 𝜋', target-platform=universal

I have fixed this. This fix will be included in pathvalidate v3.1

[matanox]

Awesome and thanks for this small useful library that's really filling a gap for safe coding against the file systems!