david abrahams wqbfboostconsultingcom tue oct 23 2007 toby dickenson wrote iybzpoboxcom wrote dave somebody already written file lock library dave encapsulates maybe use doesnt dave exist exist several flavors query pythondev indicates sounds like good addition python im sure solution case cron job probably tte using different database filename atomically swap new database place old however caches dns images pickles cases ensures dont leave partial database place machine crashesis shutdownprocess killed tte run also allows procmail run old database concurrently training run guess lock file would prevent confused ive reread davids original post say problem caches rather database caches bingo see dave abrahams boost consulting httpwwwboostconsultingcom _______________________________________________ spambayesdev mailing list bsfegmjrrhnqpythonorg httpmailpythonorgmailmanlistinfospambayesdev tue 05 aug 2008 222152 0400 spambayesdev unsafe pickle saving