Function randint() does not return an integer

I faced a curious problem while taking the writing of an integer in bits in Python (I am working in Sage)

I first tried to run the code

m=7
m.bits()

Everything worked fine there. Then, I wanted to do this with a random integer. Thus, I tried to run the code

import random
m=randint(2,10)
m.bits()

That is where I got the error "AttributeError: 'int' object has no attribute 'bits'" as if the function randint was not returning an integer. I managed to force it to be an integer by doing

m=m+0

However, I am still wondering why the first writing was not working. I have to say that I am coding on online sage, even if I do not think this should be an issue.

Thanks in advance!