What is the difference between int() and floor() in Python 3?

Question

In Python 2, floor() returned a float value. Although not obvious to me, I found a few explanations clarifying why it may be useful to have floor()

Answer 1

I test time complexity of both method they are the same

from time import time
import math
import random

r = 10000000
def floorTimeFunction():
  for i in range(r):
    math.floor(random.randint(-100,100))

def intTimeFunction():
  for i in range(r):
    int(random.randint(-100,100))

t0 = time()
floorTimeFunction()
t1 = time()
intTimeFunction()
t2 = time()

print('function floor takes %f' %(t1-t0))
print('function int   takes %f' %(t2-t1))

output is:

# function floor takes 11.841985
# function int   takes 11.841325