A simple attribution checker implemented as a decorator
Project description
attrcheck: attribution checker
This module provides a simple attribution checker implemented as a decorator. All functionality are provided as keyword arguments of the decorator.
Sample example of usage is following:
>>> from attrcheck import attrcheck >>> @attrcheck(x=['real'], y=['index', 'strip'], z=dir(list)) ... def foo(x, y, z=[]): passThe code above means the following:
>>> def foo(x, y, z=[]): ... if not hasattr(x, 'real'): ... raise AttributeError ... if not hasattr(y, 'index'): ... raise AttributeError ... if not hasattr(y, 'strip'): ... raise AttributeError ... for name in dir(list): ... if not hasattr(z, name): ... raise AttributeErrorIn addition, attrcheck can check default argument values. Thus, the following code throws AttributeError.
>>> @attrcheck(y=dir(str)) ... def bar(x, y=[]): pass
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