diff --git a/Lib/collections/__init__.py b/Lib/collections/__init__.py index c4bff592dc0..011a0c1e7c1 100644 --- a/Lib/collections/__init__.py +++ b/Lib/collections/__init__.py @@ -406,11 +406,9 @@ def namedtuple(typename, field_names, *, rename=False, defaults=None, module=Non # Create all the named tuple methods to be added to the class namespace - s = f'def __new__(_cls, {arg_list}): return _tuple_new(_cls, ({arg_list}))' + s = f'lambda _cls, {arg_list}: _tuple_new(_cls, ({arg_list}))' namespace = {'_tuple_new': tuple_new, '__name__': f'namedtuple_{typename}'} - # Note: exec() has the side-effect of interning the field names - exec(s, namespace) - __new__ = namespace['__new__'] + __new__ = eval(s, namespace) __new__.__doc__ = f'Create new instance of {typename}({arg_list})' if defaults is not None: __new__.__defaults__ = defaults