On 1 February 2012 09:02, Peter Otten <__pete...@web.de> wrote: > Prasad, Ramit wrote: > > Is that true even in the face of something like sys.exit()? > > What happens if 1) sys.exit is called while in the same thread > > 2) sys.exit is called from another thread but while this thread > > is in context manager? > > sys.exit() uses the normal exception mechanism to terminate a program: > > >>> import sys > >>> try: > ... sys.exit() > ... except SystemExit: > ... print "I'd rather not" > ... > I'd rather not > >>> > > It won't derail a context manager: > > >>> from contextlib import contextmanager > >>> @contextmanager > ... def f(): > ... try: > ... yield > ... finally: print "bye" > ... > >>> import sys > >>> with f(): > ... sys.exit() > ... > bye > $
Note OTOH that os._exit() just terminates the process with no cleanup (this may be what you were thinking of): >>> from contextlib import contextmanager >>> @contextmanager ... def f(): ... try: ... yield ... finally: print "bye" ... >>> import os >>> with f(): ... os._exit(1) ... $ Tim Delaney
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