In Python 2.x, unlike Python 3.x, printit is not a function, but the instruction described here . This basically means that it is printconsidered as a keyword (for example for) and not as strong as a function printthat you know from Python 3.x. In particular, it does not support the keyword argument sep.
Using:
from __future__ import print_function
You can make it printbehave like a function printin Python 3.x.
, print_function __future__ :
print "*".join(["Hellow", "World"])