Add demo.py

demo.py

@@ -0,0 +1,23 @@
+# author: Tiffany Timbers
+# date: 2020-01-15
+
+"""This script prints out docopt args.
+Usage: docopt.py <arg1> --arg2=<arg2> [--arg3=<arg3>] [<arg4>]
+
+Options:
+<arg>             Takes any value (this is a required positional argument)
+--arg2=<arg2>     Takes any value (this is a required option)
+[--arg3=<arg3>]   Takes any value (this is an optional option)
+[<arg4>]          Takes any value (this is an optional positional argument)
+"""
+
+from docopt import docopt
+opt = docopt(__doc__)
+
+def main(opt, arg4):
+    print(opt)
+    print(type(opt))
+    print(f'The value of arg4 is {arg4} and the type of arg4 is {type(arg4)}')
+
+if __name__ == "__main__":
+    main(opt, opt["<arg4>"])