I don't believe that's true. For instance, in the aforementioned example my code has a mysql db uri specified in db.py, but the mysql driver is never loaded, despite its obvious presence in the virtualenv. Only the sqlite3 driver gets loaded.
The different behavior can clearly be observed after running w2p_clone and then running w2p_run from env/bin vs. env/web2py/bin. The former is 1.98.2 and the latter is 1.99.3. Just an observation, not necessarily causation. I noted the old version on the pip install. The version getting invoked seems to change with the location in the project tree. I believe there is something wrong with the way the pip install web2py sets up within the virtualenv but I'm not sure what. The following examples are, of course, after running source env/bin/activate. ======================================================================== Running env/bin/w2p_run from root directory (web2py version correct, but no mysql drivers loaded): ======================================================================== (env)[watson@watson-thinkpad web2py_heroku (master)]$ env/bin/w2p_run web2py Web Framework Created by Massimo Di Pierro, Copyright 2007-2011 Version 1.98.2 (2011-08-28 09:59:26) Database drivers available: SQLite3, mongoDB ========================================================================= Running env/web2py/w2p_run after w2p_clone from root directory (note wrong web2py version, but mysql drivers loaded) : ========================================================================= (env)[watson@watson-thinkpad web2py_heroku (master)]$ env/web2py/ w2p_run web2py Web Framework Created by Massimo Di Pierro, Copyright 2007-2011 Version 1.98.2 (2011-08-28 09:59:26) Database drivers available: SQLite3, pymysql, mongoDB Starting hardcron... WARNING:web2py:GUI not available because Tk library is not installed ========================================================================= Running env/web2py/w2p_run from same directory (note correct web2py version and mysql drivers loaded) ========================================================================= (env)[watson@watson-thinkpad web2py (master)]$ w2p_run web2py Web Framework Created by Massimo Di Pierro, Copyright 2007-2011 Version 1.99.3 (2011-11-28 08:28:56) dev Database drivers available: SQLite3, pymysql, mongoDB Starting hardcron... WARNING:web2py:GUI not available because Tk library is not installed Hope this helps. Thanks, David On Nov 28, 5:51 pm, Christopher Steel <chris.st...@gmail.com> wrote: > To change db backends you need to edit the db.py file and that should do it.
