Issue 14718: In the generator's try/finally statement a runtime error occurs when the generator is not exhausted (original) (raw)

Issue14718

Created on 2012-05-03 22:22 by py.user, last changed 2022-04-11 14:57 by admin. This issue is now closed.

Messages (2)
msg159883 - (view)	Author: py.user (py.user) *	Date: 2012-05-03 22:22
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 >>>
msg159884 - (view)	Author: Benjamin Peterson (benjamin.peterson) *	Date: 2012-05-03 22:33
It means in the body of the try statement.