How to convert a 2d string list in 2d int list? example:
>>> pin_configuration = [['1', ' 1', ' 3'], ['2', ' 3', ' 5'], ['3'], ['4', ' 5'], ['5', ' 1'], ['6', ' 6'], ['7']]
>>> to [[1,1,3], [2,3,5], [3], [4,5], [5,1], [6,6], [7]]
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3 Answers
Python 3.x
print ( [list( map(int,i) ) for i in l] )
Output :
[[1, 1, 3], [2, 3, 5], [3], [4, 5], [5, 1], [6, 6], [7]]
Comments
Do with list comprehension,
In [24]: l = [['1', ' 1', ' 3'], ['2', ' 3', ' 5'], ['3'], ['4', ' 5'], ['5', ' 1'], ['6', ' 6'], ['7']]
In [25]: result = [map(int,i) for i in l]
Result
In [26]: print result
[[1, 1, 3], [2, 3, 5], [3], [4, 5], [5, 1], [6, 6], [7]]
4 Comments
Ma0
this is Python 2 only. Cast to
list to be cross-version
Rahul K P
@Ev.Kounis OP doesn't mentioned any version. And the functionality part will work with both.
Ma0
Whenever no version is mentioned and one has to be assumed, going with the latest is the safest bet imho. But covering both is rather trivial in this case.
Rahul K P
@Ev.Kounis So i used
2.7 here. I guess it's pretty stable and safest.Python has a function called int() that will make strings into integers. Try that out.
