mk <mrk...@gmail.com> writes: > Found in Dive into Python: > > """Guido, the original author of Python, explains method overriding > this way: "Derived classes may override methods of their base > classes. Because methods have no special privileges when calling other > methods of the same object, a method of a base class that calls > another method defined in the same base class, may in fact end up > calling a method of a derived class that overrides it. (For C++ > programmers: all methods in Python are effectively virtual.)" """ > > So, I set out to create such case: > > class A(object): > def __init__(self): > print "A" > > def met(self): > print "I'm A's method" > > def overriden(self): > print "I'm A's method to be overriden" > > def calling_overriden(self): > self.overriden() [...] > class E(C,D): > def __init__(self, arg): > print "E", "arg=",arg > C.__init__(self, arg) > D.__init__(self, arg) > > def some(self): > self.met() > > def overriden(self): > print "I'm really E's method" > > e = E(10) > print 'MRO:', ' '.join([c.__name__ for c in E.__mro__]) > e.some() > e.calling_overriden() > > > Result: > ... > MRO: E C A D B object > I'm C's method > I'm really E's method > > > Is what I concocted in e.calling_overriden() == what Guido said on > base class sometimes calling overriden method instead of its own > original method?
Yes! -- Arnaud -- http://mail.python.org/mailman/listinfo/python-list
