How to replace the values of elements in the list?

Question

For example, there is a list:

lst = [[1, 0], [0, 0, 2]]

How to replace all zeros to become:

 lst = [[1, 1], [1, 1, 2]]

Timofei Bondarev

6,930 3 32 51

Bernard

516 one five nineteen

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1 answer 1

Stanislav Grot Stanislav Grot 1,910 6 21 · Accepted Answer · 2016-11-18T19:02:48

 lst = [[1,0],[0,0,2]] newLst = [[1 if j == 0 else j for j in i] for i in lst] print(newLst)

Will return

 [[1, 1], [1, 1, 2]]