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[Yang Zhang]

Hi all,
       I wonder if it is possible to create an object of func, class or
method in the run time by it's name? To make it more clear, let me show you
an example: I parsed the python code and found a function with name 'len'. I
want to know if it is a build-in func(where can I look up?). If so, ignore
it otherwise I want to find out which module is it defined in. All I know is
the name (which is a string), and all the modules that this program have
imported. In the same way, I also need to process the class and methods
call. I wonder if it is possible? I will appreciate your help very much!!

-Ryan