Message 208960 - Python tracker

Message208960

Author	glangford
Recipients	glangford, mark.dickinson, tim.peters, vstinner
Date	2014-01-23.15:33:51
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1390491231.67.0.503348563079.issue20369@psf.upfronthosting.co.za>
In-reply-to

Content
For a Future f which has already completed, wait( [f,f], return_when=ALL_COMPLETED ) blocks forever. This is because the test in wait(): if len(done) == len(fs) is comparing the length of a set to the length of a list. If f has not completed, wait( [f,f] ) will yield f once. The behaviour should be consistent with as_completed() - see issue #20367.

Content

For a Future f which has already completed, 
  wait( [f,f], return_when=ALL_COMPLETED ) 
blocks forever.

This is because the test in wait():

  if len(done) == len(fs)

is comparing the length of a set to the length of a list. 

If f has not completed, wait( [f,f] ) will yield f once. The behaviour should be consistent with as_completed() - see issue #20367.

History
Date	User	Action	Args
2014-01-23 15:33:51	glangford	set	recipients: + glangford, tim.peters, mark.dickinson, vstinner
2014-01-23 15:33:51	glangford	set	messageid: <1390491231.67.0.503348563079.issue20369@psf.upfronthosting.co.za>
2014-01-23 15:33:51	glangford	link	issue20369 messages
2014-01-23 15:33:51	glangford	create