bots: Add basic metadata with failover, used on running only.

zulip_bots/zulip_bots/bots/wikipedia/wikipedia.py

@@ -18,6 +18,11 @@ class WikipediaHandler(object):
     kind of external issue tracker as well.
     '''
 
+    META = {
+        'name': 'Wikipedia',
+        'description': 'Searches Wikipedia for a term and returns the top article.',
+    }
+
     def usage(self):
         return '''
             This plugin will allow users to directly search

zulip_bots/zulip_bots/bots/xkcd/xkcd.py

@@ -14,6 +14,11 @@ class XkcdHandler(object):
     commands.
     '''
 
+    META = {
+        'name': 'XKCD',
+        'description': 'Fetches comic strips from https://xkcd.com.',
+    }
+
     def usage(self):
         return '''
             This plugin allows users to fetch a comic strip provided by

zulip_bots/zulip_bots/lib.py

@@ -187,7 +187,17 @@ def run_message_handler_for_bot(lib_module, quiet, config_file, bot_name):
 
     state_handler = StateHandler()
 
+    # Set default bot_details, then override from class, if provided
+    bot_details = {
+        'name': bot_name.capitalize(),
+        'description': "",
+    }
+    bot_details.update(getattr(lib_module.handler_class, 'META', {}))
+
     if not quiet:
+        print("Running {} Bot:".format(bot_details['name']))
+        if bot_details['description'] != "":
+            print("\n\t{}".format(bot_details['description']))
         print(message_handler.usage())
 
     def handle_message(message):