Convert string to Python class object? -

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Looking at a string as user input for a python function, if I want to get a square object from there I am in the name hall with the name that is currently defined in the namespace. Essentially, I want to implement a function that produces such results: 

  square fu: pass str_to_log ("foo") ==> & Lt; On class __main__.Foo 0x69ba0 & gt;

Is this possible?

It seems simple. 

  & gt; & Gt; & Gt; Square Fu (object): ... pass ... pass & gt; & Gt; & Gt; Evil ("foo") & lt; Class' __main __. Foo '& gt;

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