tried putting in a class

bot.py

@@ -18,34 +18,47 @@ from time import strftime
 import re
 import unidecode
 
-# Define a few command handlers. These usually take the two arguments bot and
-# update. Error handlers also receive the raised TelegramError object in error.
 
+class TelegramMonitorBot:
 
-def security_check_message(bot, update):
+    def __init__(self):
+        # '[0-9a-fA-F]{40,40}',
+        self.message_ban_patterns = os.environ['MESSAGE_BAN_PATTERNS']
+        self.message_ban_re = re.compile(self.message_ban_patterns, re.IGNORECASE)
+
+        self.message_hide_patterns = os.environ['MESSAGE_HIDE_PATTERNS']
+        self.message_hide_re = re.compile(self.message_hide_patterns, re.IGNORECASE)
+
+    # # Define a few command handlers. These usually take the two arguments bot and
+    # # update. Error handlers also receive the raised TelegramError object in error.
+    # def security_check_username(bot, update):
+    #     """ Test username for security violations """
+    #     # ban_patterns = [
+    #     #     'origin',
+    #     #     'admin',
+    #     #     'official',
+    #     # ]
+    #     pass
+
+    def security_check_message(self, bot, update):
         """ Test message for security violations """
 
-    ban_patterns = [
-        '[0-9a-fA-F]{40,40}',
-        'Fart',
-    ]
-
-    # Remove accents from letters
+        # Remove accents from letters (é->e, ñ->n, etc...)
         message = unidecode.unidecode(update.message.text)
 
-    regexp_pattern = "|".join(ban_patterns)
-    r = re.compile(regexp_pattern, re.IGNORECASE)
-    if r.search(message):
-        print("Bannable match: {}".format(update.message.text.encode('utf-8')))
+        if self.message_hide_re.search(message):
             # Delete the message
+            print("Hide match: {}".format(update.message.text.encode('utf-8')))
             update.message.delete()
 
-        # # Ban the user
-        # kick_success = update.message.chat.kick_member(update.message.from_user.id)
-        # print(kick_success)
+        if self.message_ban_re.search(message):
+            # Ban the user
+            kick_success = update.message.chat.kick_member(update.message.from_user.id)
+            print(kick_success)
+            print("Ban match: {}".format(update.message.text.encode('utf-8')))
 
 
-def logger(bot, update):
+    def logger(self, bot, update):
         """Primary Logger. Handles incoming bot messages and saves them to DB"""
 
         user = update.message.from_user
@@ -70,13 +83,14 @@ def logger(bot, update):
             )
 
         try:
-        security_check_message(bot, update)
+            self.security_check_username(bot, update)
+            self.security_check_message(bot, update)
         except Exception as e:
             print(e)
 
 
-# DB queries
-def id_exists(id_value):
+    # DB queries
+    def id_exists(self, id_value):
         s = session()
         bool_set = False
         for id1 in s.query(User.id).filter_by(id=id_value):
@@ -88,7 +102,7 @@ def id_exists(id_value):
         return bool_set
 
 
-def log_message(user_id, user_message):
+    def log_message(self, user_id, user_message):
 
         try:
             s = session()
@@ -101,31 +115,31 @@ def log_message(user_id, user_message):
             print(e)
 
 
-def add_user(user_id, first_name, last_name, username):
+    def add_user(self, user_id, first_name, last_name, username):
         try:
             s = session()
-        bool_set = False
-        user = User(id=user_id, first_name = first_name, last_name = last_name, username = username)
+            user = User(
+                id=user_id,
+                first_name=first_name,
+                last_name=last_name,
+                username=username)
             s.add(user)
             s.commit()
             s.close()
-
-        if id_exists(user_id) == True:
-            bool_set = True
-
-        return bool_set
-
+            return id_exists(user_id)
         except Exception as e:
             print(e)
 
 
-def error(bot, update, error):
+    def error(self, bot, update, error):
         """Log Errors caused by Updates."""
-    print("Update '{}' caused error '{}'".format(update, error), file=sys.stderr)
+        print("Update '{}' caused error '{}'".format(update, error),
+            file=sys.stderr)
 
 
-def main():
+    def start(self):
         """Start the bot."""
+
         # Create the EventHandler and pass it your bot's token.
         updater = Updater(os.environ["TELEGRAM_BOT_TOKEN"])
 
@@ -135,12 +149,12 @@ def main():
         # on different commands - answer in Telegram
 
         # on noncommand i.e message - echo the message on Telegram
-    dp.add_handler(MessageHandler(Filters.text, logger))
+        dp.add_handler(MessageHandler(Filters.text, self.logger))
 
         # dp.add_handler(MessageHandler(Filters.status_update, status))
 
         # log all errors
-    dp.add_error_handler(error)
+        dp.add_error_handler(self.error)
 
         # Start the Bot
         updater.start_polling()
@@ -154,4 +168,6 @@ def main():
 
 
 if __name__ == '__main__':
-    main()
+    c = TelegramMonitorBot()
+
+    c.start()