How to covert a list into a list with sublists? python

I’m making a little data base on python.

my_list = ['jack', 'liam', 'gary', 'poly']

I want to convert the list into this

result = [('jack', 'liam'),('liam', 'gary'),('gary', 'poly')]

Is there anyway i can do this?

Answer

zip will return a tuple from two iterables; if you take the same list, but shifted as you wish (in this case, one element forward) you can have your expected result.

Also, the generator will exhaust on the shortest iterable (the second one).

>>> [(a,b) for (a,b) in zip(my_list, my_list[1:])]
[('jack', 'liam'), ('liam', 'gary'), ('gary', 'poly')]