--- a/eric6/DebugClients/Python/DebugBase.py	Wed Oct 07 19:14:36 2020 +0200
+++ b/eric6/DebugClients/Python/DebugBase.py	Thu Oct 08 17:24:54 2020 +0200
@@ -958,7 +958,6 @@
             "filename": co.co_filename,
             "firstlineno": co.co_firstlineno,
             "argcount": co.co_argcount,
-            "posonlyargcount": co.co_posonlyargcount,
             "kwonlyargcount": co.co_kwonlyargcount,
             "nlocals": co.co_nlocals,
             "stacksize": co.co_stacksize,