Insert a newline character every 64 characters using Python

Question

Using Python I need to insert a newline character into a string every 64 characters. In Perl it\'s easy:

s/(.{64})/$1\\n/

How could this be

Answer 1

Tiny, not nice:

"".join(s[i:i+64] + "\n" for i in xrange(0,len(s),64))