qiskit/circuit/decorators.py
def _to_bits(nqbits, ncbits=0, func=None):
    """Convert gate arguments to [qu|cl]bits from integers, slices, ranges, etc.
    For example circuit.h(0) -> circuit.h(QuantumRegister(2)[0]) """
    if func is None:
        return functools.partial(_to_bits, nqbits, ncbits)

    @functools.wraps(func)
    def wrapper(self, *args):
        qbits = self.qubits()
        cbits = self.clbits()

        nparams = len(args) - nqbits - ncbits
        params = args[:nparams]
        qb_args = args[nparams:nparams + nqbits]
        cl_args = args[nparams + nqbits:]

        args = list(params) + _convert_to_bits(qb_args, qbits) + _convert_to_bits(cl_args, cbits)

        return func(self, *args)

    return wrapper
def _to_bits(nqbits, ncbits=0, func=None):
    """Convert gate arguments to [qu|cl]bits from integers, slices, ranges, etc.
    For example circuit.h(0) -> circuit.h(QuantumRegister(2)[0]) """
    if func is None:
        return functools.partial(_to_bits, nqbits, ncbits)

    @functools.wraps(func)
    def wrapper(self, *args):
        qbits = self.qubits()
        cbits = self.clbits()

        nparams = len(args) - nqbits - ncbits
        params = args[:nparams]
        qb_args = args[nparams:nparams + nqbits]
        cl_args = args[nparams + nqbits:]

        args = list(params) + _convert_to_bits(qb_args, qbits) + _convert_to_bits(cl_args, cbits)

        return func(self, *args)

    return wrapper
def _to_bits ( nqbits , ncbits = 0 , func = None ) : if func is None : return functools . partial ( _to_bits , nqbits , ncbits ) @ functools . wraps ( func ) def wrapper ( self , * args ) : qbits = self . qubits ( ) cbits = self . clbits ( ) nparams = len ( args ) - nqbits - ncbits params = args [ : nparams ] qb_args = args [ nparams : nparams + nqbits ] cl_args = args [ nparams + nqbits : ] args = list ( params ) + _convert_to_bits ( qb_args , qbits ) + _convert_to_bits ( cl_args , cbits ) return func ( self , * args ) return wrapper
Convert gate arguments to [qu|cl]bits from integers, slices, ranges, etc.
    For example circuit.h(0) -> circuit.h(QuantumRegister(2)[0])
Convert gate arguments to [ qu|cl ] bits from integers slices ranges etc . For example circuit . h ( 0 ) - > circuit . h ( QuantumRegister ( 2 ) [ 0 ] )