(self, x)
Removes and Returns value at given index, else none.
Removes and Returns value at given index, else none.
Removes and Returns value at given index else none .
def pop(self, x):
        """Removes and Returns value at given index, else none."""
        try:
            return self._args.pop(x)
        except IndexError:
            return None
def pop ( self , x ) : try : return self . _args . pop ( x ) except IndexError : return None