Question

how to get in python from string not one character, but two?

I have:

long_str = 'abcd'
for c in long_str:
   print c

and it gives me like

a
b
c
d

but i need to get

ab
cd

I’m new in python.. is there any way?

Answer 1

for i, j in zip(long_str[::2], long_str[1::2]):
  print (i+j)

or

import operator
for s in map(operator.add, long_str[::2], long_str[1::2]):
   print (s)

---

itertools also provide a generalized implementation of this:

def grouper(n, iterable, fillvalue=None):
    "grouper(3, 'ABCDEFG', 'x') --> ABC DEF Gxx"
    args = [iter(iterable)] * n
    return izip_longest(fillvalue=fillvalue, *args)