How to generate random combinations of numbers in python

Question

I want to generate about 15 random combinations of numbers using digits 0-9. It's like permutation of numbers without repetition of any digit. How can I do?

Answer 1

You can use itertools library. It has permutations, combinations operations. Look at the following example. Hope it helps.

>>> import itertools
>>> import random
>>> num_list=[]
>>> n=15
>>> t=list(itertools.permutations('123456789', 7))
>>> for i in range(n):
...     idx=random.randint(1,len(t)-1)
...     k=''.join(str(e) for e in t[idx])
...     num_list.append(k)
...
>>> num_list
['6127354', '5713894', '8342971', '1367458', '6729438', '6298317', '9758624', '5634821', '9457123', '3156498', '9158264', '9543786', '6892137', '7649382', '3289765']