Method pex

Lib/test/test_yield_from.py:346–348

(e)

        """
        trace = []
        def pex(e):
            trace.append("%s: %s" % (e.__class__.__name__, e))
            trace.append("value = %s" % (e.value,))
        e = StopIteration()
        pex(e)
        e = StopIteration("spam")