Branch detection gets nested try / if / for blocks wrong. I've broken down code from our code base as a simple example. The example has a missing jump from the for loop to the except body. In our code base it's a jump from the for loop to the else block.
def func(a): return a def example(a): try: if a: for x in a: # no jump to line 10 func(x) else: func(a) except Exception: # pragma: no cover pass # line 10 example() example()
Python: 2.7.1 Coverage: 3.5a1