'Iterate over the files in this directory.  Does not yield any
result for the special paths \'.\' and \'..\'.'

def iterdir(self):

    if self._closed:
        self._raise_closed()
    for name in self._accessor.listdir(self):
        if (name in {'.', '..'}):
            continue
        (yield self._make_child_relpath(name))
        if self._closed:
            self._raise_closed()
