Update app.py

app.py

@@ -11,10 +11,11 @@ def run_command(command):
         result = error.decode('utf-8')
         return result
 
-def run_code(request):
-    if request:
-        code = request.split('@')[0]
-        lang = request.split('@')[1]
+def run_code(command):
+    print(command)
+    if command is not None:
+        code = command.split('@')[0]
+        lang = command.split('@')[1]
 
         if lang == 'python':
             try: