python - how do you split a string to create nested list?

Question

How would you split a string like

'1,55,6,89,2|7,29,44,5,8|767,822,999'

on the two delimiters ',' and '|' such that you have a list with the values like:

[[1, 55, 6, 89, 2], [7, 29, 44, 5, 8], [767, 822, 999]]

Answer 1

List comprehension are the most terse way to accomplish this.

>>> s = '1,55,6,89,2|7,29,44,5,8|767,822,999'
>>> [[int(x) for x in ss.split(',')] for ss in s.split('|')]
[[1, 55, 6, 89, 2], [7, 29, 44, 5, 8], [767, 822, 999]]