Message 230397 - Python tracker

Message230397

Author	ethan.furman
Recipients	ethan.furman, rhettinger
Date	2014-10-31.22:14:36
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1414793676.66.0.938379315821.issue22779@psf.upfronthosting.co.za>
In-reply-to

Content
--> from collections import deque --> d = deque() --> d += 1 Traceback (most recent call last): File "<stdin>", line 1, in <module> TypeError: 'int' object is not iterable deque should be returning NotImplemented, which would generate a more appropriate error message: TypeError: unsupported operand type(s) for -=: 'collections.deque' and 'int' which is what happens with -=, *=, /=, \|=, at which point I stopped testing.

Content

--> from collections import deque
--> d = deque()
--> d += 1
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'int' object is not iterable

deque should be returning NotImplemented, which would generate a more appropriate error message:

TypeError: unsupported operand type(s) for -=: 'collections.deque' and 'int'

which is what happens with -=, *=, /=, |=, at which point I stopped testing.

History
Date	User	Action	Args
2014-10-31 22:14:36	ethan.furman	set	recipients: + ethan.furman, rhettinger
2014-10-31 22:14:36	ethan.furman	set	messageid: <1414793676.66.0.938379315821.issue22779@psf.upfronthosting.co.za>
2014-10-31 22:14:36	ethan.furman	link	issue22779 messages
2014-10-31 22:14:36	ethan.furman	create