How to crop Python strings

It depends on the case of separation, but if it's just a string separation, you can do it as follows.

Python String Related Materials

a = "QWASDFGHJK"

print a[2:6]

print a[6:len(a)]

For your information, simply a[6:] will print it out from the 6th to the end. And even if a is 10 in length, if you write a[6:1000], the error does not occur and returns from the 6th to the end.

If you write it down as follows, it will be printed out by cutting off 4 pieces. At the end, even if there are 1 to 4 left, only the rest will be printed.

a = "QWASDFGHJK"
start = 2
finish = 6

while finish <= len(a):
    print a[start:finish]
    start += 4
    finish += 4