Every call of initialize_sys_path was adding two new hooks to the sys.meta_path, resulting in very long loading times on databases having a lot of modules. For example, 2.27s instead of 752 on a database having 130 installed modules. References: - odoo/odoo#45780 - odoo/odoo#45662 closes odoo/odoo#53121 X-original-commit: 2444fde7f852787d87589a93c4bc385d76ff20e9 Signed-off-by: Christophe Simonis <chs@odoo.com> Signed-off-by: Olivier Dony (odo) <odo@openerp.com>