def remove_files(filename):
        # type: (AnyStr) -> None
        """
        Delete all files with same root as fileName,
        i.e. regardless of suffix, such as ESRI shapefile
        """
        pattern = os.path.splitext(filename)[0] + '.*'
        for f in glob.iglob(pattern):
            os.remove(f)
Delete all files with same root as fileName,
        i.e. regardless of suffix, such as ESRI shapefile