Update autodiscovery function for windows

[hansey]

The sep of path under windows is "" instead of "/" under linux or macos. Update a variable to automatically change the sep of path

[ChihweiLHBird]

Can we do the same thing with pathlib, the more modern Python APIs?

[hansey]

@ChihweiLHBird you mean directly get the name via Path(path).name?

[ahopkins]

@ChihweiLHBird you mean directly get the name via Path(path).name?

yes