How do I interleave strings in Python?

Question

How do I interleave strings in Python?

Given

s1 = 'abc'
s2 = 'xyz'

How do I get axbycz?

Answer 1

Have you tried reading the fine manual? It really helps!

Answer 2

Here is one way to do it

>>> s1="abc"
>>> s2="xyz"
>>> "".join(i for j in zip(s1,s2) for i in j)
'axbycz'

It also works for more than 2 strings

>>> s3="123"
>>> "".join(i for j in zip(s1,s2,s3) for i in j)
'ax1by2cz3'

Here is another way

>>> "".join("".join(i) for i in zip(s1,s2,s3))
'ax1by2cz3'

And another

>>> from itertools import chain
>>> "".join(chain(*zip(s1,s2,s3)))
'ax1by2cz3'