Comment 2 for bug 1431099

I was about to report the same issue, but with a different example. Pasting here for reference:
x = 0
while True:
    data = "dummy"
    if x == 1:
        del data
        break
    print data
    del data
    break

Real life example:
https://github.com/jelmer/dulwich/blob/master/dulwich/protocol.py#L353