It's "of", rather than "in"... this is probably the Python one mentioned: https://github.com/python/cpython/blob/d7538dd5e3e04a8db22e1470cb2ed696bf3be160/Pytho

It's "of", rather than "in"... this is probably the Python one mentioned: https://github.com/python/cpython/blob/d7538dd5e3e04a8db22e1470cb2ed696bf3be160/Python/ceval.c#L568 https://github.com/python/cpython/blob/d7538dd5e3e04a8db22e1...