def do_upgrade(env, ver, cursor):
    config = env.config

    config.set('svn', 'authz_file',
               config.get('trac', 'authz_file'))
    config.set('svn', 'authz_module_name',
               config.get('trac', 'authz_module_name'))
    config.set('versioncontrol', 'default_repository_type',
               config.get('trac', 'repository_type', 'svn'))

    config.remove('trac', 'authz_file')
    config.remove('trac', 'authz_module_name')
    config.remove('trac', 'repository_type')
    backup_config_file(env, '.db39.bak')
    config.save()
Move options from [trac] section to more appropriately-named sections.
dataset/ETHPy150Open edgewall/trac/trac/upgrades/db39.py/do_upgrade