You actually have to open it using only 'w' instead of 'wb' in python 3 so change it to:
with open(session.db_backup_name, 'w', newline=''): See: https://docs.python.org/3/library/csv.html?highlight=csv#csv.writer -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to web2py+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.