Writer
The Writer class is accessible via the pylogo.oobuiltins module.
Methods
f setwritepos(self, charpos) ...
SETWRITEPOS charpos
command. Sets the file pointer of the write stream file so that the next PRINT, etc., will begin writing at the charpos character in the file, counting from 0. (That is, SETWRITEPOS 0 will start writing from the beginning of the file.) Meaningless if the write stream is the terminal.
See the source for more information.