Split string into strings by length?

Question

Is there a way to take a string that is 4*x characters long, and cut it into 4 strings, each x characters long, without knowing the length of the s

Answer 1

def split2len(s, n):
    def _f(s, n):
        while s:
            yield s[:n]
            s = s[n:]
    return list(_f(s, n))

Answer 2

# spliting a string by the length of the string

def len_split(string,sub_string):
    n,sub,str1=list(string),len(sub_string),')/^0*/-'
    for i in range(sub,len(n)+((len(n)-1)//sub),sub+1):
        n.insert(i,str1)   
    n="".join(n)
    n=n.split(str1)
    return n

x="divyansh_looking_for_intership_actively_contact_Me_here"
sub="four"
print(len_split(x,sub))

# Result-> ['divy', 'ansh', 'tiwa', 'ri_l', 'ooki', 'ng_f', 'or_i', 'nter', 'ship', '_con', 'tact', '_Me_', 'here']

Answer 3

Here is a one-liner that doesn't need to know the length of the string beforehand:

from functools import partial
from StringIO import StringIO

[l for l in iter(partial(StringIO(data).read, 4), '')]

If you have a file or socket, then you don't need the StringIO wrapper:

[l for l in iter(partial(file_like_object.read, 4), '')]

Answer 4

>>> x = "qwertyui"
>>> chunks, chunk_size = len(x), len(x)/4
>>> [ x[i:i+chunk_size] for i in range(0, chunks, chunk_size) ]
['qw', 'er', 'ty', 'ui']

Answer 5

I tried Alexanders answer but got this error in Python3:

TypeError: 'float' object cannot be interpreted as an integer

This is because the division operator in Python3 is returning a float. This works for me:

>>> x = "qwertyui"
>>> chunks, chunk_size = len(x), len(x)//4
>>> [ x[i:i+chunk_size] for i in range(0, chunks, chunk_size) ]
['qw', 'er', 'ty', 'ui']

Notice the // at the end of line 2, to ensure truncation to an integer.

Answer 6

length = 4
string = "abcdefgh"
str_dict = [ o for o in string ]
parts = [ ''.join( str_dict[ (j * length) : ( ( j + 1 ) * length ) ]   ) for j in xrange(len(string)/length  )]