def _write_file_prefix(f, interpreter):
 if interpreter:
  shebang = (('#!' + interpreter.encode(shebang_encoding)) + '\n')
  f.write(shebang)

def _write_file_prefix ( f , interpreter ) : if interpreter : shebang = ( ( '#!' + interpreter . encode ( shebang_encoding ) ) + '\n' ) f . write ( shebang )
write a shebang line .