def more_info(self):
        """
        Prints out more information about the databox.
        """
        print("\nDatabox Instance", self.path)
        print("\nHeader")
        for h in self.hkeys: print("  "+h+":", self.h(h))
        s = "\nColumns ("+str(len(self.ckeys))+"): "
        for c in self.ckeys: s = s+c+", "
        print(s[:-2])