On Feb 28, 7:47 am, "Brian Smith" <[EMAIL PROTECTED]> wrote: > Chris wrote: > > I need simple data persistence for a cgi application that > > will be used potentially by multiple clients simultaneously. > > So I need something that can handle locking among writes. > > Sqlite probably does this, but I am using Python 2.4.4, which > > does not include sqlite. The dbm-style modules would > > probably be fine, but I have no idea if they are "write safe" > > (I have no experience with the underlying unix stuff). Any > > tips appreciated. > > No, you cannot assume that this will work without locking. Locking is > not trivial to do in Python. And, even with a working locking mechanism, > you still have to invalidate the in-memory caches any time a write to > the database is done. Futher, most dbm modules do not have ACID > properties. > > I suggest intalling the pysqlite module and using it, regardless of your > version of CPython. According to pysqlite developer, the version of > pysqlite included in CPython 2.5 is old. > > - Brian
Thanks for the info. In response to Dennis's question--the system is controlled by a tyrannical system administrator, so I was hoping to not have to ask him to install anything extra. But it sounds like sqlite (or mysql) is the way to go, so I will pursue that path. Thanks, Chris -- http://mail.python.org/mailman/listinfo/python-list
