Iterate through list two items at a time

Gabriel Genellina gagsl-py at yahoo.com.ar
Wed Jan 3 03:57:13 CET 2007


At Tuesday 2/1/2007 22:57, Dave Dean wrote:

>   myList = [1,2,3,4,5,6]
>
>I'd like to be able to pull out two items at a time - simple examples would
>be:
>Create this output:
>1 2
>3 4
>5 6

b=iter(a)
for x in b:
    y=b.next()
    print x,y

b=iter(a)
for x,y in ((item, b.next()) for item in b):
    print x,y

>Create this list:
>[(1,2), (3,4), (5,6)]

b=iter(a)
[(item, b.next()) for item in b]

Note that they don't behave the same at the corner cases (empty list, 
single item, odd length...)


-- 
Gabriel Genellina
Softlab SRL 


	

	
		
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