You need to install the win32 extensions. web2py without sessions may cause data loss if you store data in sessions.
On Apr 7, 1:21 am, Iceberg <iceb...@21cn.com> wrote: > Hi pals, > > Havn't used cron feature for quite some while, and knowing it has been > under refactoring in recent several major versions of web2py. Today I > try to pick it up, but then notice a warning message keeps showing up > on console. > > C:>web2py -a1 > WARNING:root:no file locking > Starting hardcron... > WARNING:root:WEB2PY CRON: Disabled because no file locking > WARNING:root:WEB2PY CRON: Disabled because no file locking > > And none of my cron jobs is fired. This is not like the old days. Oh, > I miss them. > > I am using web2py source version, latest trunk, by python 2.5, on a > Windows XP. > > Then I digged into the code a little, and found that is because I do > not install python win32 extention, so gluon/portalockr.py defines > portalocker.LOCK_EX==None, and for some reason since 1Mar2010 (http:// > code.google.com/p/web2py/source/detail? > r=5dd1e2b9c893ae04cba5af1d9b67dd79c2efed44&path=/gluon/contrib/ > cron.py), cron.py requires a portalocker.LOCK_EX to work. > > So question 1: Is LOCK_EX necessary for cron to work? What is the > downside if no lock is used? If the downside is acceptable (at least > during development phase on Windows platform), can we have a command > line option to simply turn off the lock check? > Before that, the workaround is to use the windows binary package of > web2py, which comes with the win32 extention inside. > > Question 2: If LOCK_EX is somehow necessary, can we design another > lock mechanism to fully cross-platform? For example, use > threading.Lock instead. I know this can not cross-process, but perhaps > it serves as just a fallback option better than none. > > Regards, > Iceberg -- You received this message because you are subscribed to the Google Groups "web2py-users" group. To post to this group, send email to web...@googlegroups.com. To unsubscribe from this group, send email to web2py+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/web2py?hl=en.
