book text input/output <_io textiowrapper name='treasure txtencoding='utf- 'file name character encodinghow to represent letters as numbers utf- means "ucs transformation format - -bitucs means ""universal character set this is defined by international standard iso/iec information technology -universal multiple-octet coded character set (ucsfor more information than you could possibly want on this topic visit the unicode web pageswww unicode org