It's now possible to set multiple botprefixes

bot.ini.example

@@ -11,6 +11,12 @@
 #   try searching the internet for "How to create a Discord bot token" or
 #   visit: https://discordpy.readthedocs.io/en/latest/discord.html
 #   Also don't forget to invite the bot onto your server(s).
+#
+# - botprefixes
+#   This is the prefix for commands when not using slash-commands.
+#   Can also contain several prefixes, define it like: botprefixes=['!', '?','.']
+#   (list of strings)
 
 [General]
 bottoken=BOTTOKEN_HERE
+botprefixes=.

pybot-f.py

@@ -11,9 +11,6 @@ from logging import handlers
 
 
 # Logging
-#loghandler = logging.FileHandler(filename='bot.log', encoding='utf-8', mode='w')
-#discord.utils.setup_logging(handler=loghandler)
-
 logger = logging.getLogger('discord')
 logger.setLevel(logging.INFO)
 
@@ -48,10 +45,20 @@ config.read('bot.ini')
 
 
 bottoken = config['General']['bottoken']
+botprefixes = config['General']['botprefixes']
+
+
+def get_prefixes(bot, message):
+    """
+    For setting the bots prefixes in addition to mentions.
+    """
+
+    prefixes = botprefixes  # Can be a list of strings
+    return commands.when_mentioned_or(*prefixes)(bot, message)
 
 
 # Setting up commands.Bot
-bot = commands.Bot(command_prefix='.', description=description, intents=intents)
+bot = commands.Bot(command_prefix=get_prefixes, description=description, intents=intents)
 
 
 @bot.event