arrays - Easy way to implement dynamic views? -

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See are useful productions. Those who have never seen (like me): You can write k = d.keys () for a dictionary d and even if you < Code> d variable k will still provide you an updated key. You can then type k1 & amp; K2 and it will always give you the d1.keys () & amp; D2.keys ()

I want to apply it to my personal Today manager, but I would like to consider complex Dynamic , or Authentic Assessment . That is, I have some views named such as , post and priority and I want to be able to write: 

  is now = like this. Phone & amp; Priority

So, when called __ repr __ (now) , the evaluation is done only on that point.

My first idea was to give surcharge to logical operators, so I changed the to create a new view .__ and __ , which is itself the overall form of two subviews Remembers and & amp; them in Compass But there are many logical operators, so I'm not sure I'm doing the right thing.

Is there a standard library class that will help me with that? How can I simplify this process?

OK, there is a collection. The user list class that defines most, perhaps it means that you do not have to override them all.


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