ipromise 0.7

A Python base class that provides various decorators for specifying promises relating to inheritance.

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ipromise
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A Python base class that provides various decorators for specifying promises relating to inheritance.

It provides the decorator ``overridable``, which indicates that inheriting
classes that define this method
* must decorate their method overriddes with ``overrides``, and
* must call super within their method definition::

class A:

@overridable
def f(self):
return 0


class B(A):

@overrides(A)
def f(self):
return super().f() + 1

It provides the decorator ``implements``, which indicates that a method
implements an abstract method in a base class::

class A:

@abstractmethod
def f(self):
raise NotImplementedError


class B(A):

@implements(A)
def f(self):
return 0