Accept action returned value of type pathlib.*Path as success

[vlcinsky]

It is great, doit allows using pathlib.

Things like these are simple and easy:

import shutil
from pathlib import Path

src = Path("input/file.txt")
out = Path("output/file.txt")

res = shutil.copy(src, out)

The only problem is, that (with python 3.6) the res is of the same value as out and following action fails:

	{
		"actions": [
			(shutil.copy, [src, out]),
		],
	}

because value of type pathlib.PosixPath is not considered a sign of success.

There is a workaround (shutil.copy, [src, str(out)]) but as doit already acounts for use of pathlib, why not accept such values as sign of success.

[schettino72]

makes sense. just needs a patch 😁