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object --+ | etree.ElementClassLookup --+ | etree.FallbackElementClassLookup --+ | PythonElementClassLookup
Element class lookup based on a subclass method.
To use it, inherit from this class and override the lookup method to lookup the element class for a node:lookup(self, document, node_proxy)
The first argument is the opaque document instance that contains the Element. The second arguments is a lightweight Element proxy implementation that is only valid during the lookup. Do not try to keep a reference to it. Once the lookup is done, the proxy will be invalid.
If you return None from this method, the fallback will be called.
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Inherited from Inherited from |
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Inherited from Inherited from |
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