[Tutor] create dict from 2 lists

[Gregor Lingl]

BRINER Cedric schrieb:

> hi,
>
> assume that I want to create the dict:
> p={1:11,2:22,3:33,4:44}
>
> and that i have:
> the keys=[1,2,3,4]       and
> the values=[11,22,33,44]
>
> Is the simpliest way to do this, is to do :
> p={}
> for i in range(len(keys)):
>   p[keys[i]]=values[i]
>
> or is there a hidded function which do this?
>
You could use the non-hidden function zip:
(See: Python Library Reference 2.1)

 >>> keys=[1,2,3,4]
 >>> values=[11,22,33,44]
 >>> p={}
 >>> for key,value in zip(keys,values):
    p[key]=value
  
 >>> p
{1: 11, 2: 22, 3: 33, 4: 44}

Regards, Gregor


> Cédric BRINER
>