argparse new parser

Author: AbeTavarez

intro/create_a_command_line_parse/using_argparse.py

@@ -5,5 +5,17 @@
 import argparse
 
 if __name__ == '__main__':
-    # Create interface
+    # Create parser object with it's documentation
     parser = argparse.ArgumentParser(description='Echo input')
+    # adds position based command with it's help message
+    parser.add_argument('message', help='Message to echo')
+
+    parser.add_argument('--twice', '-t', help='Do it twice',
+                        action='store_true')
+
+    args = parser.parse_args()
+
+    print(args.message)
+
+    if args.twice:
+        print(args.message)