def get_path_to_calibration_file(self):
    path = os.path.join(self.base_dir, 'calibration.pdf')
    return os.path.normcase(os.path.abspath(path))
def get_path_to_calibration_file(self):
    path = os.path.join(self.base_dir, 'calibration.pdf')
    return os.path.normcase(os.path.abspath(path))