Turn gets/sets into attributes

[rogerbinns]

Various things like authorizer and tracers currently have get and/or set methods. Deprecate those and use attributes instead. Also various things are added to module at import time via PyModule_AddObject which may be done a better way, especially to get docstrings

Here are the relevant current methods.

• Connection.getautocommit
• Connection.getexectrace
• Cursor.getexectrace
• Connection.getrowtrace
• Cursor.getrowtrace
• Cursor.getconnection
• Connection.setauthorizer

Can't be done:

• Connection.set_last_insert_rowid (already a method)

Won't be done (very rarely used):

• Connection.setbusyhandler
• Connection.setcommithook
• Connection.setprofile
• Connection.setprogresshandler
• Connection.setrollbackhook
• Connection.setupdatehook
• Connection.setwalhook

[rogerbinns]

After investigation, module level attributes cannot be provided with docstrings, nor can they be as getters/setters. That machinery (aka descriptors) can only be done via TypeObjects which the module is not. It is possible to define a module __getattr__ method so a method is called when they are read, but that only happens for names not in the module dictionary. To make all the names appear a module level __dir__ would also be needed. __setattr__ is never called.