question

Question

why .0 needed?

Answer 1

how make dir with module

Answer 2

4 is a integer
4.0 is float..
for python both are different.

(in Python 2.7)
ex. 4.0/8 gives output 0.5 which is again a float
but 4/8 will give output 0...since operations on integers can only give output integer as output