thanks for the detailed explaination... i know about basic lists
slicing..just havn't seen one with "steps" yet..
thanks again...clp rocks.
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alist[::2] means taking a slice. You should look up slice-syntax in the
tutorials and reference manual.
in general,
alist[1:5] means: take list elements position 1 up to (excluding) 5.
(List indexing starts at position 0, so the first element in the list
is not included!)
alist[0:5] means: take l
thanks for all your replies...I will go test them out..
I was wondering what does this mean alist[1::2]?
thanks
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On Mon, 08 May 2006 00:44:39 -0700, micklee74 wrote:
> i have a list with contents like this
> alist = ['>QWER' , 'askfhs', '>REWR' ,'sfsdf' , '>FGDG',
> 'sdfsdgffdgfdg' ]
>
> how can i "convert" this list into a dictionary such that
>
> dictionary = { '>QWER':'askfhs' , '>REWR' : 'sfsdf' , '>FGD
Using slices and built-in zip:
>>> alist = ['>QWER' , 'askfhs', '>REWR' ,'sfsdf' , '>FGDG', 'sdfsdgffdgfdg' ]
>>> dict(zip(alist[::2], alist[1::2]))
{'>QWER': 'askfhs', '>FGDG': 'sdfsdgffdgfdg', '>REWR': 'sfsdf'}
Slightly more efficient might be to use izip from itertools:
>>> from itertools imp
hi
i have a list with contents like this
alist = ['>QWER' , 'askfhs', '>REWR' ,'sfsdf' , '>FGDG',
'sdfsdgffdgfdg' ]
how can i "convert" this list into a dictionary such that
dictionary = { '>QWER':'askfhs' , '>REWR' : 'sfsdf' , '>FGDG',
'sdfsdgffdgfdg' }
thanks
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