## sriramaam

hi,
I am trying to do some aombination study. I have saw some codes on permutations and combinations.
But for all those programs input is a single list. I am trying to make combination from 4 lists.
I have input 4 lists. Now I want to generate several combination lists. Example output is given below
Hope some one can help me to generate such output. Thanks in advance.
Input Lists:
list1 = [1,2]
list2 = [A,B,C]
list3 = [X,Y]
list4 = [M,N,O]
Output Combination lists:
[1,A,X,M]
[1,A,X,N]
[1,A,X,O]
[1,A,Y,M]
[1,A,Y,N]
[1,A,Y,O]
[1,B,X,M]
[1,B,X,N]
[1,B,X,O]
[1,B,Y,M]
[1,B,Y,N]
[1,B,Y,O]
[1,c,X,M]
[1,c,X,N]
[1,c,X,O]
[1,c,Y,M]
[1,c,Y,N]
[1,c,Y,O]

[2,A,X,M]
[2,A,X,N]
[2,A,X,O]
[2,A,Y,M]
[2,A,Y,N]
[2,A,Y,O]
[2,B,X,M]
[2,B,X,N]
[2,B,X,O]
[2,B,Y,M]
[2,B,Y,N]
[2,B,Y,O]
[2,c,X,M]
[2,c,X,N]
[2,c,X,O]
[2,c,Y,M]
[2,c,Y,N]
[2,c,Y,O]
Best regards,
Sriram

## GlueMan

``````list1 = ['1','2']
list2 = ['A','B','C']
list3 = ['X','Y']
list4 = ['M','N','O']

resu = ( )

for i in list1:
for j in list2:
for k in list3:
for l in list4:
resu = resu + ([i,j,k,l],)

print resu``````

Here the results are stored into a tuple. You can do what you want with this tuple (print it in this example).

## sriramaam

Dear Friend(GlueMan)
Thank you for the code. Its right. But what I am looking at is a general function, where the number of lists ( list1 thru listN ) may vary. This code works fine for 4 number of lists.
Thank you .

Regards,
Sriram

## siddhant3s 1,429

Did you ever thought of doing your work yourself?
Simply stating "I want this" do not work.
At least put an effort and then ask for help.
Read http://www.daniweb.com/forums/thread202628.html or this.

Hint: use recursive functions.

## sriramaam

Friends I could find the recipe from active state
"Recipe 496807: list of all combination from multiple lists "
Thanks for author.

Best regards,
Sriram

## woooee 814

Did you ever thought of doing your work yourself?
I could find the recipe from active state

Obviously not (something like "This is __not__ freeprograms.com" should be displayed prominently on the website). I try to follow the rule that when a question is asked with words, I respond with words. And similarly, code with code.

## sriramaam

Gentlemen!!
I agree with your comments, but I don't want to put some weird code , which is not working for me.
I thank for the ideas and codes provided by some friends over here.
Its a general expectation from the beginners like me to get some ideas from experts like you

Sriram

Obviously not (something like "This is __not__ freeprograms.com" should be displayed prominently on the website). I try to follow the rule that when a question is asked with words, I respond with words. And similarly, code with code.