def show_usage_error(self, exc):
    "Show a short message for UsageErrors\n\n        These are special exceptions that shouldn't show a traceback.\n        "
    print(('UsageError: %s' % exc), file=sys.stderr)
Show a short message for UsageErrors

These are special exceptions that shouldn't show a traceback.
def show_usage_error(self, exc):
    "Show a short message for UsageErrors\n\n        These are special exceptions that shouldn't show a traceback.\n        "
    print(('UsageError: %s' % exc), file=sys.stderr)