IndexError                                Traceback (most recent call last)
C:\Users\Oleg\Desktop\fobbinaci.py in <module>()
      1 # -*- coding: utf-8 -*-
      2 import sys
----> 3 a = float(sys.argv[1])
      4 b = float(sys.argv[2])
      5 c = float(sys.argv[3])

IndexError: list index out of range 

IndexError: list index out of range 

python C:\Users\Oleg\Desktop\fobbinaci.py аргумент_а аргумент_б аргумент_в

python C:\Users\Oleg\Desktop\fobbinaci.py 2 3 4