def _merge_files(self, input_files, output_file):
        """Combine the input files to a big output file"""
        # we assume that all the input files have the same charset
        with open(output_file, mode='wb') as out:
            for input_file in input_files:
                out.write(open(input_file, mode='rb').read())
def _merge_files ( self , input_files , output_file ) : with open ( output_file , mode = 'wb' ) as out : for input_file in input_files : out . write ( open ( input_file , mode = 'rb' ) . read ( ) )
Combine the input files to a big output file