(self)
return len(self.targets) + len(self.controls)
The total number of qubits this gate acts on.

        For controlled gate subclasses this includes both target and control
        qubits, so that, for examples the CNOT gate acts on 2 qubits.
The total number of qubits this gate acts on.
The total number of qubits this gate acts on .
def nqubits(self):
        """The total number of qubits this gate acts on.

        For controlled gate subclasses this includes both target and control
        qubits, so that, for examples the CNOT gate acts on 2 qubits.
        """
        return len(self.targets) + len(self.controls)
def nqubits ( self ) : return len ( self . targets ) + len ( self . controls )