CODEWITHSUNDEEP
pythonarrayslistloopspython-2.7
Genghis Khan
Genghis Khan

Reputation: 970

Retrieve a 2 items from a list at a time in loop?

how can I retrieve 2 items from a loop at a time?

I have this list

lst = ['url1', 'value1', 'url2', 'value2', ... ]

I want to loop it and for every iteration I want to fetch 2 items.

for x in lst:
    x # here x loops 1 by one.

I am using bellow solution 

for i in range(0, len(lst), 2):
    url = lst[i]
    val = lst[i+1]

I wan to know is there anything built in?

Upvotes: 1

Views: 136

Answers (1)

Tim Pietzcker
Tim Pietzcker

Reputation: 336128

>>> lst = ['url1', 'value1', 'url2', 'value2']
>>> i = iter(lst)
>>> zip(i,i)
[('url1', 'value1'), ('url2', 'value2')]

or, probably more useful:

>>> i = iter(lst)
>>> dict(zip(i,i))
{'url1': 'value1', 'url2': 'value2'}

Upvotes: 9

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