Simple "debug" mode to print errors and tracebacks.

bot.py

@@ -3,6 +3,8 @@ import os
 import codecs
 import discord
 import time
+import sys
+import traceback
 
 from discord.ext import commands
 from cogs.utils.settings import Settings
@@ -28,11 +30,12 @@ def _get_prefix(bot, message):
 
 
 class Bot(commands.Bot):
-    def __init__(self):
+    def __init__(self, debug: bool=False):
         super().__init__(command_prefix=_get_prefix,
                          description=config["description"])
 
         self.settings = Settings(**config)
+        self.debug = debug
 
         for extension in initial_extension:
             try:
@@ -41,33 +44,40 @@ class Bot(commands.Bot):
                 print(e)
 
     async def on_command_error(self, ctx, err):
-        if (isinstance(err, commands.MissingRequiredArgument) or
-                isinstance(err, commands.BadArgument)):
-            formatter = ctx.bot.formatter
-            if ctx.invoked_subcommand is None:
-                _help = await formatter.format_help_for(ctx, ctx.command)
-            else:
-                _help = await formatter.format_help_for(ctx,
-                                                        ctx.invoked_subcommand)
+        if not self.debug:
+            if (isinstance(err, commands.MissingRequiredArgument) or
+                    isinstance(err, commands.BadArgument)):
+                formatter = ctx.bot.formatter
+                if ctx.invoked_subcommand is None:
+                    _help = await formatter.format_help_for(ctx, ctx.command)
+                else:
+                    _help = await formatter.format_help_for(ctx,
+                                                            ctx.invoked_subcommand)
 
-            for message in _help:
-                await ctx.send(message)
+                for message in _help:
+                    await ctx.send(message)
 
-        if isinstance(err, commands.CommandInvokeError):
-            pass
+            if isinstance(err, commands.CommandInvokeError):
+                pass
 
-        elif isinstance(err, commands.NoPrivateMessage):
-            await ctx.send("Denne kommandoen er ikke tilgjengelig i DMs")
+            elif isinstance(err, commands.NoPrivateMessage):
+                await ctx.send("Denne kommandoen er ikke tilgjengelig i DMs")
 
-        elif isinstance(err, commands.CheckFailure):
-            pass
+            elif isinstance(err, commands.CheckFailure):
+                pass
 
-        elif isinstance(err, commands.CommandNotFound):
-            pass
+            elif isinstance(err, commands.CommandNotFound):
+                pass
+        else:
+            tb = err.__traceback__
+            traceback.print_tb(tb)
+            print(err)
 
     async def on_ready(self):
         if not hasattr(self, 'uptime'):
             self.uptime = time.time()
+            if self.debug:
+                print('\n\nDebug mode')
 
         print(f'\nLogged in as: {self.user.name}' +
               f' in {len(self.guilds)} servers.')
@@ -84,9 +94,12 @@ class Bot(commands.Bot):
             print('ifkn', e)
 
 
-def run_bot():
-    bot = Bot()
+def run_bot(debug: bool=False):
+    bot = Bot(debug=debug)
     bot.run()
 
 if __name__ == '__main__':
-    run_bot()
+    if 'debug' in sys.argv:
+        run_bot(debug=True)        
+    else:
+        run_bot(debug=False)