Search notes:
Python: class derivation
Python allows to derive (child-)
classes from parent/base classes.
In the declaration of the derived class, the name of the base class appears in parentheses after the name of the derived class.
When a method is called on the derived class without overriding it, the base class' method (with the same name) will be called
class Base:
def m(self):
print('Base::m')
class Deriv(Base):
pass
d = Deriv()
d.m()
Overriding methods in derived classes
The following example tries to demonstrate how
methods might be overridden in derived classes:
class Base:
def m(self):
print('Base::m')
class Deriv(Base):
def m(self):
print('Deriv::m')
b = Base ()
d = Deriv()
b.m()
d.m()
Calling methods of base classes
A method is able to call a base class's
method using the
super() built-in function.