url = "http://192.168.99.100:8069"
db = "bevepe"
username = "admin"
password = "XR6e%naysv;c"

common = xmlrpclib.ServerProxy('{}/xmlrpc/2/common'.format(url))
uid = common.authenticate(db, username, password, {})
models = xmlrpclib.ServerProxy('{}/xmlrpc/2/object'.format(url))

id = models.execute_kw(db, uid, password, 'product.template', 'write', [[12851], {
    'company_product': [(6,0, [1,3,4])]
}])