<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def delete_pointing(self, event):
 """Delete the currently active pointing"""


        if self.current is None:
            return
        for item in self.pointings[self.current]['items']:
            self.delete(item)
        self.delete(self.pointings[self.current]['label']['id'])
        del (self.pointings[self.current])

        self.current = None