New submission from py.user <[email protected]>:
http://www.python.org/dev/peps/pep-0342/
" 6. Allow "yield" to be used in try/finally blocks, since garbage
collection or an explicit close() call would now allow the
finally clause to execute."
"New syntax: yield allowed inside try-finally
The syntax for generator functions is extended to allow a
yield-statement inside a try-finally statement."
>>> def f():
... try:
... yield 1
... yield 2
... yield 3
... finally:
... yield 4
...
>>> g = f()
>>> next(g)
1
>>> next(g)
2
>>> g = f()
Exception RuntimeError: 'generator ignored GeneratorExit' in <generator object
f at 0xb74d2504> ignored
>>>
----------
components: Interpreter Core
messages: 159883
nosy: py.user
priority: normal
severity: normal
status: open
title: In the generator's try/finally statement a runtime error occurs when the
generator is not exhausted
type: behavior
versions: Python 3.2
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Python tracker <[email protected]>
<http://bugs.python.org/issue14718>
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