Python permutations of heterogenous list elements

Question

This is the sequence:

l = [['A', 'G'], 'A', ['A', 'C']]

I need the three element sequence back for each permutation

all = ['AAA','GAA','AAC','GAC']

I can't figure this one out! I'm having trouble retaining the permutation order!

Padraic Cunningham · Accepted Answer · 2015-05-06 01:32:09Z

6

You want the product:

from itertools import product

l = [['A', 'G'], 'A', ['A', 'C']]

print(["".join(p) for p in product(*l)])

edited May 6, 2015 at 1:32

answered May 6, 2015 at 1:30

Padraic Cunningham

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2 Comments

jwillis0720 Over a year ago

brilliant solution +1 for product

abarnert Over a year ago

Of course this only works because all of his values are 1-character strings… but then if that weren't true, his data format would be a horrible mess in the first place.

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