[Tutor] how i can change two lists into one directory

[Steven D'Aprano]

On Fri, 23 Jul 2010 09:51:37 am ANKUR AGGARWAL wrote:
> hey i have just started making  a app using python and just gt a
> problem..
>
> i have two list
> a=["x","z"]
> b=[1,2]
>
> i want to make a directory like this
> c={"x":1,"z":2}


The word you want is "dictionary" or "dict", not directory.

Here's one slow, boring, manual way:

a = ["x", "z"]
b = [1, 2]
c = {}
c[a[0]] = b[0]
c[a[1]] = b[1]

You can turn that into a loop:

c = {}
for index in range( min(len(a), len(b)) ):
    c[a[i]] = b[i]


Here's the sensible way that makes Python do all the heavy lifting:

c = dict(zip(a, b))



-- 
Steven D'Aprano