CODEWITHSUNDEEP
pythonlistnested
Venide
Venide

Reputation: 5

How can I turn a flat list into a nested list with every next pair from the original list?

How can I turn a list such as:

og_list = [0, 4, 12, 18, 20, 23]

into a nested list such as:

new_list = [[0, 4], [4, 12], [12, 18], [18, 20], [20, 23]]

How can I achieve this?

Upvotes: 0

Views: 46

Answers (3)

DarrylG
DarrylG

Reputation: 17156

og_list = [0, 4, 12, 18, 20, 23]
new_list = [list(x) for x in zip(og_list, og_list[1:])]
print(new_list) # [0, 4], [4, 12], [12, 18], [18, 20], [20, 23]]

Upvotes: 0

Hetal Thaker
Hetal Thaker

Reputation: 717

og_list = [0, 4, 12, 18, 20, 23]
new_list = [[og_list[i],og_list[i+1]] for i in range(len(og_list)-1)]
print(new_list)

Alternatively you can also use itertools module as below:

from itertools import cycle

og_list = [0, 4, 12, 18, 20, 23]
licycle = cycle(og_list)
next(licycle)
new_list = [[i,next(licycle)] for i in og_list]
print(new_list)

Upvotes: 0

Aven Desta
Aven Desta

Reputation: 2443

new_list = []
for i in range(len(og_list)-1):
  new_list.append( [og_list[i],og_list[i+1]] )

Upvotes: 1

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