attrcheck 0.1.2

attrcheck is a Python module that 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=[]): pass

The 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 AttributeError

In 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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Requirements:

· Python