Recursively calling a method inside a class in python

Question

class Example(object):
    def doSomething(self, num):
        if(num < 10 ) : 
            //print the number
        else : 
            //call doSomething() again

Here how do I call the doSomething method in the else condition inside the method?

Answer 1

Call it with self.doSomething(num-1), because doSomething would refer to a global function rather than the one in the class. Also put the print before the if so that it prints the number regardless of what it is (so you can see the numbers decreasing) and put a return in it's place:

class Example(object):
    def doSomething(self, num):
        print num
        if(num < 10 ) : 
            return
        else : 
            self.doSomething(num-1)

---

>>> x = Example()
>>> x.doSomething(15)
15
14
13
12
11
10
9
>>>