combining lists items

Question

i have some lists with str(numbers) for example ['8', '0', '9', '5', '7'], ['8', '0', '9', '5', '7'] need to join each element from first list with each element from second list ['88','80','89','85','87','08'...] the number of lists can be up to 100

firstly i think to use itertools.product(), but I didn't manage to implement it

You said you tried `itertools.product` -- did you `join` the products together? e.g. `[''.join(p) for p in itertools.product(first_list, second_list)]` If that didn't work, what was missing from the output that you were hoping to get? — Samwise, Mar 15 '23 at 14:57
See [Python convert tuple to string](https://stackoverflow.com/q/19641579/6045800) if you are actually using `product` — Tomerikoo, Mar 15 '23 at 15:06

score 0 · Answer 1 · answered Mar 15 '23 at 14:57

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try:

L= ['8', '0', '9', '5', '7']
B=['8', '0', '9', '5', '7'] 
your_list=[i+j for i in L for j in B]

answered Mar 15 '23 at 14:57

Mouad Slimane

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score 0 · Accepted Answer · answered Mar 15 '23 at 14:58

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l1, l2 = ['8', '0', '9', '5', '7'], ['8', '0', '9', '5', '7']

import itertools

print([''.join(pair) for pair in itertools.product(l1, l2)])

answered Mar 15 '23 at 14:58

matszwecja

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if more than 2 lists? – артем костриков Mar 15 '23 at 15:02
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@артемкостриков See the duplicate – Tomerikoo Mar 15 '23 at 15:03
@артемкостриков nothing changes, you just pass one more list to `product` – matszwecja Mar 15 '23 at 15:04
thanks, i already seen it – артем костриков Mar 15 '23 at 15:12

combining lists items

2 Answers2