Argument of Enum type only Python -

i have simple piece of python code, have number of enums defined this:

import sys time import sleep enum import enum  class bw(enum):     lte1p4           = 0     lte3             = 1     lte5             = 2     lte10            = 3     lte15            = 4     lte20            = 5 

i want member functions of class accept enum type argument , script should not run otherwise, here main class:

class breithorn:     def __init__(self):         self.rx_settings = {}         self.tx_settings = {}      def rx_bw(self,bw):         self.rx_settings['bw'] = bw 

i want member function accept these kind of calls:

breithorn.rx_bw(bw.lte5) 

and reject (syntax error) these kind of calls:

breithorn.rx_bw(44) 

can explain how this?

you cannot make syntax error, discovered in parsing process, @ point parser has no idea symbols bound to.

you can check type @ runtime in function , raise exception.

python uses duck typing, discover these kind of problems need unit or integration tests.