def abstractmethod(method):
def default_abstract_method(*args, **kwargs):
raise NotImplementedError('call to abstract method ' + repr(method))
default_abstract_method.__name__ = method.__name__
return default_abstract_method
if __name__ == '__main__':
class A:
@abstractmethod
def foo(self, data): pass
class B(A):
def foo(self, data):
self.data = data
a = A()
b = B()
b.foo(5)
exception_raised = False
try:
a.foo(3)
except NotImplementedError:
exception_raised = True
assert exception_raised
print 'OK'
Diff to Previous Revision
--- revision 4 2011-04-19 11:21:03
+++ revision 5 2011-04-20 21:50:23
@@ -1,10 +1,6 @@
-class AbstractMethodError(Exception):
- def __init__(self, method):
- Exception.__init__(self, 'call to abstract method ' + repr(method))
-
def abstractmethod(method):
def default_abstract_method(*args, **kwargs):
- raise AbstractMethodError(method)
+ raise NotImplementedError('call to abstract method ' + repr(method))
default_abstract_method.__name__ = method.__name__
@@ -28,7 +24,7 @@
exception_raised = False
try:
a.foo(3)
- except AbstractMethodError:
+ except NotImplementedError:
exception_raised = True
assert exception_raised
