How to restore a builtin that I overwrote by accident?

Question

I accidentally overwrote set by using it as a variable name in an interactive python session - is there any way that I can get access to the original set<

Answer 1

To use builtin wrapper, first assign its original address in a variable like X

After your work is done then set it to None and set back the original address to builtin function.

Example

1. X= __builtin__.isinstance
2. __builtin__.isinstance = myininstance

3. work is done

   __builtin__.isinstance=None 
   
   __builtin__.isinstance=X