Python Interview Questions

D'Arcy J.M. Cain darcy at
Sun Nov 18 18:16:14 CET 2012

On 18 Nov 2012 16:50:52 GMT
Steven D'Aprano <steve+comp.lang.python at> wrote:
> On Sun, 18 Nov 2012 08:53:25 -0500, Roy Smith wrote:
>> > Use a list when you need an ordered collection which is mutable
> > (i.e. can be altered after being created).  Use a tuple when you
> > need an immutable list (such as for a dictionary key).
> I keep hearing about this last one, but I wonder... who *actually*
> does this? I've created many, many lists over the years -- lists of
> names, lists of phone numbers, lists of directory search paths, all
> sorts of things. I've never needed to use one as a dictionary key.

Well, as long as *you* never needed it then...

CellBlock = 9 # There's a riot going on...
Cell = 17
Bunk = "top"

Prisoner = {(CellBlock, Cell, Bunk): "Bernie Madoff"}

D'Arcy J.M. Cain <darcy at>         |  Democracy is three wolves                |  and a sheep voting on
+1 416 425 1212     (DoD#0082)    (eNTP)   |  what's for dinner.
IM: darcy at Vex.Net

More information about the Python-list mailing list