for a 'good python'

[jak]

Stefan Ram ha scritto:
> jak <nospam at please.ty> writes:
>> @property
>> def subnet(self):
>>     return self.__to_str(self.__tsubnet)
> 
>    Maybe each of those attributes should be an object of a
>    special class where your "__to_str" is "__str__"? E.g.,
> 
> # code in "calcip.__init__"
> self.tsubnet = ip_address_class.from_int( subnet )
> 
>    where "ip_address_class" is as in:
> 
> import collections
> import random
> 
> class ip_address_class( collections.UserList ):
>      def __init__( self, bytes_address ):
>          super().__init__( bytes_address )
>      @classmethod
>      def from_int( cls, int_address ):
>          return cls( int_address.to_bytes( 4, 'big' ))
>      def __str__( self ):
>          return '.'.join( str( byte_ )for byte_ in self.data )
> 
> if __name__ == '__main__':
>      ip_address = \
>      ip_address_class.from_int( random.randint( 0, 4294967295 ))
>      print( ip_address[ 0 ])
>      print( ip_address )
> 
>    . Now the client can access each byte individually and also
>    get a "nice" string representation.
> 
>    (You may add more "from_..." methods for all the various
>    formats you create addresses from.)
> 
>    But you should also research the standard library to see
>    if something like this doesn't already exist ready-made
>    specifically for IP addresses in the standard library.
> 
> 
ok. thanks a lot. now i try to do that.