selenium.py 文件源码

def _wait_until_search_input_field_appears(self, max_wait=5):
        """Waits until the search input field can be located for the current search engine

        Args:
            max_wait: How long to wait maximally before returning False.

        Returns: False if the search input field could not be located within the time
                or the handle to the search input field.
        """

        def find_visible_search_input(driver):
            input_field = driver.find_element(*self._get_search_input_field())
            return input_field

        try:
            search_input = WebDriverWait(self.webdriver, max_wait).until(find_visible_search_input)
            return search_input
        except TimeoutException as e:
            logger.error('{}: TimeoutException waiting for search input field: {}'.format(self.name, e))
            return False