Where no provisions are otherwise made in this part, the general election laws of the state then in existence with regard to all notices, qualifications of voters, official acts, and things to be done in connection with calling and holding elections, making returns, canvassing and certifying the same shall govern in all respects, and all penalties fixed for wrongful acts and violations of the general election laws of the state shall apply to similar acts and violations in all special elections held under this part. The provisions of this part relating to the calling of special elections are mandatory and those relating to the conduct and the method of canvassing the same are directory.