[Python-ideas] Assignment decorators (Re: The Descriptor Protocol...)
larry at hastings.org
Wed Mar 16 05:49:38 CET 2011
In case you'd like to play with assignment decorators using what's
possible with current syntax, I present the "assign" decorator:
return "<<" + name + ">>"
c = C()
This prints "<<x>>" in Python 3. A function was called at the
definition time of "x"; it knew the name of the variable, and it was
able to compute the value of the class attribute, and you only had to
specify the variable name once.
I'm not suggesting this be used for production code--it's awful magic.
But this could be used to prototype use cases for assignment decorators.
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