Ensure path is Path object

[iameskild]

Reference Issues or PRs

Bug fix: the path object is assumed to be a pathlib.Path object. This fix ensure that this is indeed the case.

What does this implement/fix?

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• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds a feature)
• Breaking change (fix or feature that would cause existing features not to work as expected)
• Documentation Update
• Code style update (formatting, renaming)
• Refactoring (no functional changes, no API changes)
• Build related changes
• Other (please describe):

Testing

• Did you test the pull request locally?
• Did you add new tests?

Any other comments?

[costrouc]

Personally I'd be in favor of making path: Path = None and just requiring that the function is called with a pathlib object so we don't need a conditional statement.

[costrouc]

LGTM