#!/usr/bin/python3

hrs = input("Enter Hours:")
rate = input("Enter Rate:")
#Computing Overtime
if float(hrs) > 40:
  hrs_difference = float(hrs) - 40
  #print(hrs_difference)
  overtime_pay = float(hrs_difference *(rate * 1.5))  
  print(overtime_pay)
  #total = str((float(hrs) * float(rate) + overtime_pay))
  #print('Pay: ' , total)
else:
  total = str(float(hrs) * float(rate))
  print("Pay: " ,total)

Error Message
File "./total_hours.py", line 9, in <module>
    overtime_pay = float(hrs_difference *(rate * 1.5))
TypeError: can't multiply sequence by non-int of type 'float'