Rainer ...
That is legitimate Python syntax for unpacking a sequence of tuples
where the tuples each have a single value. As an example, this code:
a = ((1,),(2,),(3,))
for b, in a:
print b
Will result in this output:
1
2
3
WIthout the comma, it would produce this output:
a = ((1,),(2,),(3,))
for b in a:
print b
(1,)
(2,)
(3,)
I'll admit that the code you identified is odd, and probably could use a
little more documentation, but it's correct code for the circumstance.
- Craig -
Rainer Sokoll wrote:
> Hi,
>
> in notification.py
> (http://trac.edgewall.org/browser/tags/trac-0.10.3/trac/ticket/notification.py),
> I came across lines 234 and 239. I have no idea about python, but are
> the commas in "for updater, in cursor:" correct python syntax? I've
> never seen that in other languages.
>
> Rainer
>
> >
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