How to use the stravalib.exc.ActivityUploadFailed function in stravalib

if not os.path.isfile(gpxfile):
		logger.warning("No file found for " + gpxfile + "!")
		return False

	logger.debug("Uploading " + gpxfile)

	try:
		upload = client.upload_activity(
			activity_file = open(gpxfile,'r'),
			data_type = 'gpx',
			private = False,
			description = notes,
			activity_type = strava_activity_type
		)

	except exc.ActivityUploadFailed as err:
		errStr = str(err)
		# deal with duplicate type of error, if duplicate then continue with next file, else stop
		if errStr.find('duplicate of activity'):
			archive_file(gpxfile)
			logger.debug("Duplicate File " + gpxfile)
			return True
		else:
			logger.error("Another ActivityUploadFailed error: {}".format(err))
			exit(1)

	except ConnectionError as err:
		logger.error("No Internet connection: {}".format(err))
		exit(1)

	logger.info("Upload succeeded.\nWaiting for response...")

def raise_for_error(self):
        # FIXME: We need better handling of the actual responses, once those are more accurately documented.
        if self.error:
            raise exc.ActivityUploadFailed(self.error)
        elif self.status == "The created activity has been deleted.":
            raise exc.CreatedActivityDeleted(self.status)

Exception raised when the client rate limit has been exceeded
    and the time to clear the limit (timeout) has not yet been reached

    http://strava.github.io/api/#access
    """


class ActivityUploadFailed(RuntimeError):
    pass


class ErrorProcessingActivity(ActivityUploadFailed):
    pass


class CreatedActivityDeleted(ActivityUploadFailed):
    pass


class TimeoutExceeded(RuntimeError):
    pass


class NotAuthenticatedAthlete(AuthError):
    """
    Exception when trying to access data which requires an authenticated athlete
    """
    pass

except FileNotFoundError:
        print('No Strava credentials provided.')
        print('You first need to run the script to fetch the credentials')
        print('./40-upload_to_strava.py')
        return -1

    try:
        client = Client(access_token=access_token)
        print('Uploading {}: '.format(os.path.basename(filename)), end='')
        with open(filename, 'rb') as f:
            upload = client.upload_activity(
                activity_file=f,
                data_type='fit',
                private=STRAVA_UPLOAD_PRIVATE,
            )
    except (ActivityUploadFailed, FileNotFoundError) as err:
        print('FAILED')
        print('Reason:', err)
        return -1

    print('SUCCESS')
    return 0

class RateLimitTimeout(RateLimitExceeded):
    """
    Exception raised when the client rate limit has been exceeded
    and the time to clear the limit (timeout) has not yet been reached

    http://strava.github.io/api/#access
    """


class ActivityUploadFailed(RuntimeError):
    pass


class ErrorProcessingActivity(ActivityUploadFailed):
    pass


class CreatedActivityDeleted(ActivityUploadFailed):
    pass


class TimeoutExceeded(RuntimeError):
    pass


class NotAuthenticatedAthlete(AuthError):
    """
    Exception when trying to access data which requires an authenticated athlete
    """
    pass