Add command error handler

geeksbot/exts/command_events.py

@@ -0,0 +1,27 @@
+import discord
+from discord.ext import commands
+from datetime import datetime
+import logging
+import traceback
+
+from geeksbot.imports.utils import Paginator, Book
+
+
+class CommandEvents(commands.Cog):
+    def __init__(self, bot):
+        self.bot = bot
+
+    # noinspection PyMethodMayBeStatic
+    async def on_command_error(self, ctx, error):
+        pag = Paginator(ctx.bot, embed=True)
+        pag.set_embed_meta(color=self.bot.error_color)
+        pag.add(f'\uFFF6Command Error')
+        pag.add(error)
+        pag.add('\uFFF7\n\uFFF8')
+        pag.add(''.join(traceback.format_exception(type(error), error, error.__traceback__)))
+        book = Book(pag, (None, ctx.channel, self.bot, ctx.message))
+        await book.create_book()
+
+
+def setup(bot):
+    bot.add_cog(CommandEvents(bot))