CODE EXAMPLE FOR PYTHON

how to print all combinations of a string in python

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']