assex leaking listcomp

.py

>>> total = 0
>>> [total := total + v for v in [1, 2, 3]]
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 1, in <listcomp>
UnboundLocalError: local variable 'total' referenced before assignment
>>> total  # ?!?!
0          # D=
>>> [(total := total + v) for v in values]  # parantheses don't solve the problem
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 1, in <listcomp>
UnboundLocalError: local variable 'total' referenced before assignment