34 lines
692 B
Plaintext
34 lines
692 B
Plaintext
type et d'objet en python
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=========================
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et voir la confusion qui est faite avec le mélange classe et objets en python
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In python, base types cannot be inherited, for example:
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<pre>
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>>> class MyType(int):
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... pass
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...
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</pre>
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But, they are not types any more, but objects. They can have attributes (types
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cannot have attributes). They cannot return anything at the init (a type has to
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return something at the init, it is the instance itself).
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<pre>
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>>> t = MyType(2)
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>>> t
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2
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>>> isinstance(t, MyType)
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True
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>>> isinstance(t, int)
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True
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>>> isinstance(MyType, type)
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True
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>>>
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>>> isinstance(t, object)
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True
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</pre>
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So MyType is a type but has the notation behavior of an object.
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