Checks if file path is russian

        :return: True iff document has a russian name

def is_russian(self):
        """Checks if file path is russian

        :return: True iff document has a russian name
        """

        russian_chars = 0
        for char in RUSSIAN_CHARS:
            if char in self.name:
                russian_chars += 1  # found a russian char
        return russian_chars > len(RUSSIAN_CHARS) / 2.0