@@ -0,0 +1,506 @@
+%22%22%22Not a serious example.%0A%0AUsage:%0A  calculator_example.py %3Cvalue%3E ( ( + %7C * %7C %5E %7C / ) %3Cvalue%3E )...%0A  calculator_example.py %3Cfunction%3E %3Cvalue%3E %5B( , %3Cvalue%3E )%5D...%0A  calculator_example.py (-h %7C --help)%0A%0AExamples:%0A  calculator_example.py 1 + 2 + 3 + 4 + 5%0A  calculator_example.py 1 + 2 '*' 3 / 4 %5E 5    # note quotes around '*'%0A  calculator_example.py sum 10 , 20 , 30 , 40%0A%0AOptions:%0A  -h, --help%0A%0A%22%22%22%0Afrom docopt import docopt%0A%0A%0Aif __name__ == '__main__':%0A    arguments = docopt(__doc__)%0A    print(arguments)%0A

Add calculator_example.py.