A district judge may hold a court in any county in this state upon the request of the judge of the district in which such court is to be held; and when by reason of sickness or absence from the state, or from any other cause a court cannot be held in any county in a district by the judge thereof, a certificate of that fact must be transmitted by the clerk to the governor or chief justice of the Supreme Court, who may thereupon direct some other district judge to hold such court.