Why do we need "\n" in Phyton?

Answer 1

\n moves the text to a new line.

Like this:
print("a\nb");
result:
a
b

Theres more characters you can add to strings too!
http://docs.oracle.com/javase/tutorial/java/data/characters.html

Answer 2

it indicates new line
try this
print("Line\nNext Line")

Answer 3

prints next line , can be compared to enter key in your keyboard
(Examples)
print ("love\n hate");

result:

love
hate

print("love\n\nhate");

result:
love

hate