help with explaining how to split a list of tuples into parts

peter at ifoley.id.au peter at ifoley.id.au
Sat Jul 13 13:47:10 CEST 2013


On Saturday, 13 July 2013 17:28:50 UTC+10, Peter Otten  wrote:
> 
> Every time when you have to look up something you should think 'dict', and I
> 
> expect that pretty that will happen automatically.
> 
> Also, to split a tuple into its items you can "unpack" it:
> 
> 
> 
> triple = (1, 2, 3)
> 
> one, two, three = triple
> 
> assert one == 1 and two == 2 and three == 3
> 
> 
> 
> So:
> 
> 
> 
> supported_hashes = {
> 
>     "crypt": (2, "", 13),
> 
>     "md5": (8, "$1$", 22),
> 
>     ...
> 
> }
> 
> ...
> 
> parser.add_argument(
> 
>     '--hash', default='sha512', 
> 
>     choices=supported_hashes, # accept the keys
> 
>     help='Which Hash function to use')
> 
> ...
> 
> salt_length, hash_type, expected_password_length = supported_hashes[args.hash]
> 
> ...

Hi Peter,

Thanks for the pointers I will try your suggestion out and read some more.

Peter.



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