bpo-37032: Add CodeType.replace() method (GH-13542)

1 files changed, 2 insertions, 8 deletions

diff --git a/Lib/types.py b/Lib/types.py
index 37ba4bb1f4..ea3c0b29d5 100644
--- a/Lib/types.py
+++ b/Lib/types.py
@@ -262,14 +262,8 @@ def coroutine(func):
         if co_flags & 0x20:
             # TODO: Implement this in C.
             co = func.__code__
-            func.__code__ = CodeType(
-                co.co_argcount, co.co_posonlyargcount, co.co_kwonlyargcount, co.co_nlocals,
-                co.co_stacksize,
-                co.co_flags | 0x100,  # 0x100 == CO_ITERABLE_COROUTINE
-                co.co_code,
-                co.co_consts, co.co_names, co.co_varnames, co.co_filename,
-                co.co_name, co.co_firstlineno, co.co_lnotab, co.co_freevars,
-                co.co_cellvars)
+            # 0x100 == CO_ITERABLE_COROUTINE
+            func.__code__ = co.replace(co_flags=co.co_flags | 0x100)
             return func
 
     # The following code is primarily to support functions that