Define __rdiv__ and __rtruediv__

[sametmax]

Currently you can do this:

Path('foo') / 'bar'

But not this:

'foo' / Path('bar')

This can be solved with rdiv and rtruediv:

sametmax@5649e5e

Should I PR ?

[jaraco]

You should have commit privileges. I say just commit the changes. Don't forget to update the changelog.

[sametmax]

Fixed by 5649e5e.