On 12/4/2009 12:32 PM Khalid Al-Ghamdi said...
Hi everyone!
I'm using python 3.1 and I want to to know why is it when I enter the
following in a dictionary comprehension:
>>> dc={y:x for y in list("khalid") for x in range(6)}
Try breaking this into pieces...
First see what [(x,y) for y in in list("khalid") for x in range(6)]
gets you, then see how that fits into dict().
To get where you want, take a look at zip'ing the two lists.
(II don't remember -- s zip still in 3.1?)
Emile
I get the following:
{'a': 5, 'd': 5, 'i': 5, 'h': 5, 'k': 5, 'l': 5}
instead of the expected:
{'a': 0, 'd': 1, 'i': 2, 'h': 3, 'k': 4, 'l': 5}
and is there a way to get the target (expected) dictionary using a
dictionary comprehension.
note that I tried sorted(range(6)) also but to no avail.
thanks
------------------------------------------------------------------------
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
_______________________________________________
Tutor maillist - Tutor@python.org
To unsubscribe or change subscription options:
http://mail.python.org/mailman/listinfo/tutor
