def _observable_from_ir_list_item()

in src/braket/circuits/observables.py [0:0]

• 19 lines of code
• 9 McCabe index (conditional complexity)

def _observable_from_ir_list_item(observable: Union[str, List[List[List[float]]]]) -> Observable:
    if observable == "i":
        return I()
    elif observable == "h":
        return H()
    elif observable == "x":
        return X()
    elif observable == "y":
        return Y()
    elif observable == "z":
        return Z()
    else:
        try:
            matrix = np.array(
                [[complex(element[0], element[1]) for element in row] for row in observable]
            )
            return Hermitian(matrix)
        except Exception as e:
            raise ValueError(f"Invalid observable specified: {observable} error: {e}")