_uri_to_path produces erroneous result on windows

[UllrichMartini]

referring to json_shema.py, line 45 ff:

calling
_uri_to_path('./schema.xml')
produces on window the filepath
'\\\.\schema.yaml'
which does not work

in my case, I fix it as

    # host = "{0}{0}{mnt}{0}".format(os.path.sep, mnt=parsed.netloc)
    host = parsed.netloc

if uri_to_path is called with a file reference the formatting "{0}{0}{mnt}{0}".format(os.path.sep, mnt=parsed.netloc) does not make sense