move updater to own module

MultiClient.py

@@ -3,41 +3,18 @@ import asyncio
 import json
 import logging
 import shlex
-import subprocess
-import sys
 import urllib.parse
-import importlib
+
+import ModuleUpdate
+ModuleUpdate.update()
+
+import colorama
+import websockets
+import aioconsole
+
 import Items
 import Regions
 
-def update_command():
-    subprocess.call([sys.executable, '-m', 'pip', 'install', '-r', 'requirements.txt', '--upgrade'])
-
-with open('requirements.txt') as requirementsfile:
-    for line in requirementsfile.readlines():
-        module, remoteversion = line.split(">=")
-        try:
-            module = importlib.import_module(module)
-        except:
-            import traceback
-            traceback.print_exc()
-            input(f'Required python module {module} not found, press enter to install it')
-            update_command()
-        else:
-            if hasattr(module, "__version__"):
-                module_version = module.__version__
-                module = module.__name__ #also unloads the module to make it writable
-                if type(module_version) == str:
-                    module_version = tuple(int(part.strip()) for part in module_version.split("."))
-                remoteversion = tuple(int(part.strip()) for part in remoteversion.split("."))
-                if module_version < remoteversion:
-                    input(f'Required python module {module} is outdated ({module_version}<{remoteversion}), press enter to upgrade it')
-                    update_command()
-
-import aioconsole
-import websockets
-import colorama
-
 class ReceivedItem:
     def __init__(self, item, location, player):
         self.item = item