string combination in python code example

Example 1: python print combinations of string

test_str = "abc"
res = [test_str[i: j] for i in range(len(test_str)) 
          for j in range(i + 1, len(test_str) + 1)]
print(res)#['a', 'ab', 'abc', 'b', 'bc', 'c']

Example 2: python print combinations of string

import itertools
 
if __name__ == '__main__':
 
    nums = list("ABC")
    permutations = list(itertools.permutations(nums))
 
    # Output: ['ABC', 'ACB', 'BAC', 'BCA', 'CAB', 'CBA']
    print([''.join(permutation) for permutation in permutations])

Example 3: python permutation

import itertools

a = [1, 2, 3]
n = 3

perm_iterator = itertools.permutations(a, n)

for item in perm_iterator:
    print(item)