I have a list of lists, and would like to use list comprehension to apply a function to each element in the list of lists, but when I do this, I end up with one long list rather than my list of lists.
So, I have
x = [[1,2,3],[4,5,6],[7,8,9]]
[number+1 for group in x for number in group]
[2, 3, 4, 5, 6, 7, 8, 9, 10]
But I want to get
[[2, 3, 4], [5, 6, 7], [8, 9, 10]]
How do I go about doing this?
question from:
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