= PySqlite = [http://initd.org/tracker/pysqlite PySqlite] is a Python binding for the [http://www.sqlite.org SQLite] light-weight database engine, which is Trac's default DatabaseBackend. It should still be possible to use the old SQLite 2.8.x with the Pysqlite [http://initd.org/pub/software/pysqlite/releases/1.0/1.0.1 1.0.1], but Trac 0.9 works best with '''SQLite 3.2.x'''. The compatible Python bindings are: * either the 1.x release branch of PySqlite (version 1.1.6 as of this writing) * or, better, the newer 2.0.x release branch (version >= 2.0.5 preferred) * ''(the upcoming 2.1.x release branch has just been started and has not yet been tested with Trac)'' Recent versions are available from [http://initd.org/tracker/pysqlite/wiki#Downloads there]. '''Note:''' If you want to use Trac in a multi-threaded setup by using either TracModPython or TracStandalone, be sure to build a '''thread-safe version of SQLite''', by using the `--enable-threadsafe` configuration switch. If you use a non thread-safe library, which is unfortunately what you get by default on non-windows platforms, you face the risk to get persistent database locks (see #2170).