New submission from yotamv:
Inside a list comprehension expression, if a StopIteration exception is raised,
the interpreter assumes the exception was raised by the object Iterated buy the
list comprehension expression.
For example, this generator will never stop, and will keep returning empty
tuples:
def izip(*args):
iters = [iter(obj) for obj in args]
while True:
yield tuple(next(it) for it in iters)
x = izip([1,2],[3,4])
print(next(x)) #(1,3)
print(next(x)) #(2,4)
print(next(x)) #()
----------
components: Interpreter Core
messages: 230246
nosy: tomirendo
priority: normal
severity: normal
status: open
title: Catching StopIteraion inside list comprehension
type: behavior
versions: Python 3.4
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Python tracker <[email protected]>
<http://bugs.python.org/issue22761>
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