Where is "switch" statement ? Do nobody needs it ?

[vlad1777d]

Thank you very much for this. It's as for me, very good idea =)

try this:

class PseudoSwitch:
    def __init__(self):
        self.exec_dict = {
            '1': self.function1,
            '2': self.function2,
            '3': self.function3
        }

    def function1(self):
        print('You ran function 1')

    def function2(self):
        print('You ran function 2')

    def function3(self):
        print('You ran function 3')

    def tryit(self):
        try:
            choice = input('enter function number: ')
            print(choice)
            self.exec_dict[choice]()
        except:
            'function out of range, use 1 2 or 3'

def main():
    ps = PseudoSwitch()
    ps.tryit()


if __name__ == '__main__':
    main()

---

Thanks, it's a good idea =)

Switch is just a pattern matching construct.  Javascript/coffeescript have a pretty mediocre version of it, so in my opinion, Python lacking it at all is better than having a halfway useful feature.

Now, if it could match on ranges, conditional checks, the type of the param (is_instance), or the return value of a function, instead of just whatever specific value it has, then it'd be more useful.  But as is, it is rarely useful even in javascript.

---

I don't know, I really often use it. Maybe as often, as if-else construction...

I wonder, why do lesser often used syntax features were added (decorators, with, as) to language; though they could be expressed as you just expressed "switch" statement - through current language features.

Decorators - through functions, as - through "=", with - through classes or functions.