How to split Python tuples into sub-tuples?

Samual Sam

Answered on 18th Apr, 2018

The most readable way to split Python tuples into sub-tuples is to slice it up yourself. For example,

x = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
y = (x[:4], x[4:8], x[8:])
print(y)

This will give the output:

((0, 1, 2, 3), (4, 5, 6, 7), (8, 9, 10, 11, 12, 13, 14))

You can do this even in loops using list comprehensions. For example, to split it up in chunks of size 3 you can use:

x = (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
y = tuple(x[i : i+4] for i in range(0, len(x), 3))
print(y)

This will give the output:

((0, 1, 2), (3, 4, 5), (6, 7, 8), (9, 10, 11), (12, 13, 14))

Pythonista

Answered on 3rd Mar, 2018

Here is a tuple with 12 integers. In order to split it in four sub-tuple of three elements each, slice a tuple of three successive elements from it and append the segment in a lis. The result will be a list of 4 tuples each with 3 numbers.

>>> tup=(7,6,8,19,2,4,13,1,10,25,11,34)
>>> lst=[]
>>> for i in range(0,10,3):
lst.append((tup[i:i+3]))
>>> lst
[(7, 6, 8), (19, 2, 4), (13, 1, 10), (25, 11, 34)]