Started on "programs"

main.py

@@ -1,13 +1,54 @@
+import argparse
+from string import ascii_lowercase
+
 import cmd2
 
+from dictionary import DEFAULT, ALTERNATE
+LOWERCASE = set(ascii_lowercase)
+DICTS = {
+    'default': DEFAULT,
+    'alt': ALTERNATE,
+}
+# argparsers
+dictionary_manage_parser = argparse.ArgumentParser()
+commands = dictionary_manage_parser.add_mutually_exclusive_group()
+commands.add_argument(
+    '-l', '--list', action='store_true', help='List available dictionaries')
+commands.add_argument(
+    '-s', '--switch', help='Dictionary to swap to')
+
+letter_set_manage = argparse.ArgumentParser()
+letter_set_manage.add_argument('new_letters')
+
 
 class MainLoop(cmd2.Cmd):
     """Loop for wordscape commands
 
     """
+    prompt = "?$ "
 
     def __init__(self):
-        letters = None
-        removed = set()
-
+        self.dict = 'default'
+        self.letters = [l for l in input(
+            "Enter letters: ").lower() if l in LOWERCASE]
+        self.prompt = ', '.join(self.letters) + ' ' + MainLoop.prompt
         super().__init__()
+
+    @cmd2.with_argparser(dictionary_manage_parser)
+    def do_dict(self, args):
+        """list/switch dict"""
+        if args.list:
+            print('\n'.join(
+                ('{} {}'.format('*' if key == self.dict else ' ',
+                                key) for key in DICTS.keys())))
+        else:
+            DICTS[args.switch]
+            self.dict = args.switch
+
+    @cmd2.with_argparser(letter_set_manage)
+    def do_change_letters(self, args):
+        pass
+
+
+if __name__ == "__main__":
+    MainLoop().cmdloop()