Whenever and wherever the words “for other purposes” occur in this chapter they shall be held to mean taxes or taxation for other purposes, and shall be construed to include all taxes, estimates for which shall have been made or the levy of which shall have been lawfully directed by any school meeting, school officer or school board, as authorized under section 164.161, other than taxes for school purposes, and taxes for capital projects purposes provided for in section 151.150, and taxes for library purposes as authorized by section 137.030.