Most of programming languages out there have switch-case statements. Python 
doesn't have support for switch-case statements though. switch-case statements 
can sometimes be nice and tidy and sometimes it may be a horrible nightmare. 
But that also applies to if-elif-else statements. It would be nice to have 
switch-case statements support in python.

Suggested syntax :-
-------------------

switch expr:
    case expr2:
    case expr3:
        statements
    default:
        statements


How should it be implemented?
-----------------------------------

First of all this will require a new syntax. Second I suggest for comparing the 
case expr with switch expr, compare the pointers instead of objects for better 
performance. Usually if the ladder is represented using if-elif-else logic then 
it would be lower performance because we'll end up comparing objects not 
pointers.
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