On Sat, Feb 09, 2008 at 09:21:41AM +0000, dave selby wrote:
> Hi all,
>
> Returning to python after a brief affair with C++, I have the following code
> ...
>
> if (items.has_keys('snapshot_interval')):
> self.snap_init[i] = items['snapshot_interval']
> else:
> self.snap_init[i] = 0
>
> I thought Python had a shorthand version of something like ....
>
> self.snap_init[i] =
> (items.has_keys('snapshot_interval'))?items['snapshot_interval']:0
For this specific task, if I understand it correctly, there is an
easy and Pythonic idiom:
self.snap_init[i] = items.get('snapshot_interval', 0)
See: http://docs.python.org/lib/typesmapping.html
For mappings/dictionaries:
a.get(k[, x])
is equivalent to:
a[k] if k in a, else x
- (another) Dave
--
Dave Kuhlman
http://www.rexx.com/~dkuhlman
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