How to use list as key of dictionary?

[Davy]

And there may be more complex list(vector like 3 or 4 dimentional data
structure), is there any easy method to tackle this problem?

Any suggestions are welcome!

Best regards,
Davy

On Nov 6, 4:50 pm, Davy <zhushe... at gmail.com> wrote:
> Hi Matimus and Boris,
>
> Thank you :)
>
> And a further question about vector above rank 1, how can I use it as
> the key of dictionary?
>
> For example, if I have list like L=[[1,2,3],[4,5,6,7]],
> Then I do L_tuple = tuple(L)>>> L_tuple = ([1,2,3],[4,5,6,7])
>
> But {L_tuple:'hello'} cause an error?
>
> Best regards,
> Davy
>
> On Nov 6, 3:09 pm, Matimus <mccre... at gmail.com> wrote:
>
>
>
> > On Nov 5, 10:53 pm, Davy <zhushe... at gmail.com> wrote:
>
> > > Hi all,
>
> > > We know that list cannot be used as key of dictionary. So, how to work
> > > around it?
>
> > > For example, there is random list like l=[1,323,54,67].
>
> > > Any suggestions are welcome!
>
> > > Best regards,
> > > Davy
>
> > Use a tuple instead.
>
> > >>> d = {}
> > >>> d[tuple([1,2,3,4])] = 'hello world'
> > >>> d
>
> > {(1, 2, 3, 4): 'hello world'}>>> d[1,2,3,4]
>
> > 'hello world'
>
> > Matt- Hide quoted text -
>
> - Show quoted text -