Odoo 12 Development Cookbook - Third Edition

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Sometimes, you are working on error-prone code, meaning that the operation you are performing may generate an error. Odoo will catch this error and display a traceback to the user. If you don't want to show a full error log to the user, you can cache the error and raise a custom exception with a meaningful message. In the given example, we are generating UserError from the try...cache block so that instead of showing a full error log, Odoo will now show a warning with a meaningful message:

def post_to_webservice(self, data):    try:        req = requests.post('http://my-test-service.com', data=data, timeout=10)        content = req.json()    except IOError:        error_msg = _("Something went wrong during data submission")        raise UserError(error_msg) ...