grouping a flat list of number by range

[K.S.Sreeram]

Yup! '_' is just used as a dummy. Its a pretty common idiom. There's
nothing special about that variable.

joh12005 at yahoo.fr wrote:
> Hello
> 
>> ...         _, first_n = group[0]
> 
> what is the meaning of the underscore "_" ? is it a special var ? or
> should it be readed as a way of unpacking a tuple in a non useful var ?
> like 
> 
> lost, first_n = group[0]
> 
> best regards.
> 


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