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Re: [Demexp-dev] Questions


From: Lyu Abe
Subject: Re: [Demexp-dev] Questions
Date: Fri, 19 Oct 2007 01:16:26 +0900
User-agent: Thunderbird 2.0.0.6 (Windows/20070728)

David,

Yep, use [::-1] operator ([:] operator with a negative step):
l=[1,2,3,4]
for i in l[::-1]:
        print i
4
3
2
1

Explanation in the Python library doc: http://docs.python.org/lib/typesseq.html

The Python doc (http://docs.python.org/) is very useful. Most of the
time, the thing you are looking for are either in the Language
Reference (http://docs.python.org/ref/ref.html) or in the Library
Reference (http://docs.python.org/lib/lib.html).

Yes thanks for the info. I was mostly looking at http://docs.python.org/tut/tut.html


BTW, please note that there is no guarantee of the demexp server to
sort the list in a specific order (the current reverse order comes
from the current sequence of processing in the server, that might
change in the future). Each question contains its question number
(parameter q_id, qu['q_id'] in your code) and you should sort the list
according to that.

Yes, I was thinking about that. There is also a method to retrieve questions by their IDs, right? Do you have any comments on which method is preferable? (or not)

        Lyu.




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