Python Forum

I have a list of 25 lists of integers:
L = [[1,2,3], [4,5,6], [7,8],[9], …]


I want to create all possible combinations using all the integers from each list:

answer = [[1,4,7,9,...], [2,4,7,9,...], [3,4,7,9,...], [1,5,7,9,...], [2,5,7,9], …]


I tried:

for a in L[0]:
    for b in L[1]:
        for c in L[2]:
            ...
                answer = [a,b,c,d, …]

This works until the line length in IDLE exceeds about 90 characters, then the program refuses to run. Is there any way of using iterators, or any other solution?

check itertools.product

Thanks Buran.

I'm new to itertools, but I'll have a look tomorrow.

Danny

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I've just found a thread from heiner55 which solves my problem in 1 line:

https://python-forum.io/Thread-How-to-fi...t-of-lists

Many thanks for all the help from the forum.

Danny