How to handle modification to mutable object yielded from generator during exhaustion

Question

I have this dummy code:

dict_list = [
    {\'foo\': 1, \'bar\': 2, \'baz\': 3, \'extra\': [4, 5, 6, 7]},
    {\'foo\': 10, \'bar\': 20, \'baz\': 30, \'extra\': []