Lichen

Annotated tests/methods_changing.py

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2017-02-13 Paul Boddie file changeset files shortlog Eliminated redundant struct usage. method-wrapper-for-context
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class C:
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    def f(self):
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        return 1
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    def g(self):
 
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        return self.f()
 
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class D(C):
 
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    pass
 
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def f():
 
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    return 2
 
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c = C()
 
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d = D()
 
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# Invoke a method that calls the default version of f.
 
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print c.g()                 # 1
 
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print d.g()                 # 1
 
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# Replace f in C and invoke the method again. For C, f will have changed,
 
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# but for D, f will retain its original value.
 
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C.f = f
 
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print c.g()                 # 2
 
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print d.g()                 # 1