Handle absence of co_posonlyargcount

Author: jakirkham

cloudpickle/cloudpickle_fast.py

@@ -189,14 +189,24 @@ def _enum_getstate(obj):
 
 def _code_reduce(obj):
     """codeobject reducer"""
-    args = (
-        obj.co_argcount, obj.co_posonlyargcount,
-        obj.co_kwonlyargcount, obj.co_nlocals, obj.co_stacksize,
-        obj.co_flags, obj.co_code, obj.co_consts, obj.co_names,
-        obj.co_varnames, obj.co_filename, obj.co_name,
-        obj.co_firstlineno, obj.co_lnotab, obj.co_freevars,
-        obj.co_cellvars
-    )
+    if hasattr(obj, "obj.co_posonlyargcount"):
+        args = (
+            obj.co_argcount, obj.co_posonlyargcount,
+            obj.co_kwonlyargcount, obj.co_nlocals, obj.co_stacksize,
+            obj.co_flags, obj.co_code, obj.co_consts, obj.co_names,
+            obj.co_varnames, obj.co_filename, obj.co_name,
+            obj.co_firstlineno, obj.co_lnotab, obj.co_freevars,
+            obj.co_cellvars
+        )
+    else:
+        args = (
+            obj.co_argcount,
+            obj.co_kwonlyargcount, obj.co_nlocals, obj.co_stacksize,
+            obj.co_flags, obj.co_code, obj.co_consts, obj.co_names,
+            obj.co_varnames, obj.co_filename, obj.co_name,
+            obj.co_firstlineno, obj.co_lnotab, obj.co_freevars,
+            obj.co_cellvars
+        )
     return types.CodeType, args