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Description:
virtualmethod 0.0.1
Decorator to prevent base class methods from being called directly.
Usage
from virtualmethod import virtualmethod
class Base(object):
@virtualmethod
def my_virtual_method(self):
print "This is a virtual method. Call me from a subclass!"
class A(Base):
pass
class B(Base):
def my_virtual_method(self):
print "I went ahead and implemented my own version."
base = Base()
a = A()
b = B()
a.my_virtual_method()
-> This is a virtual method. Call me from a subclass!
b.my_virtual_method()
-> I went ahead and implemented my own version.
base.my_virtual_method()
-> Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "virtualmethod/core.py", line 11, in __call__
raise TypeError("Virtual method %s must be called from a subclass." % self.__name__)
TypeError: Virtual method my_virtual_method must be called from a subclass.
Note(s)
@virtualmethod works with @classmethod and @staticmethod,
but must be declared first, i.e.:
@virtualmethod
@classmethod
def my_virtual_class_method(cls):
...
Credit
Thanks to Patrick Hensley for his input,
and to Denis Ryzhkov for his
method_decorator module.
License
For personal and professional use. You cannot resell or redistribute these repositories in their original state.
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