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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def pop(self, i=None):
 """remove the ith term from the term list Parameters --------- i : int, optional term to remove from term list by default the last term is popped. Returns ------- term : Term """

        if i == None:
            i = len(self) - 1

        if i >= len(self._terms) or i < 0:
            raise ValueError('requested pop {}th term, but found only {} terms'\
                            .format(i, len(self._terms)))

        term = self._terms[i]
        self._terms = self._terms[:i] + self._terms[i+1:]
        return term