python-2.7 - Selenium Python属性错误: 'WebElement' object has no attribute 'select_by_visible_text'

Question

我正在从 Selenium Python 的下拉字段中选择一个值。我收到错误:

AttributeError: 'WebElement' object has no attribute 'select_by_visible_text'

我选择下拉列表的方法是:

def select_dataset_from_dataset_dropdown(self):
    dataset_drop_down_element = WebDriverWait(self.driver, 20).until(EC.element_to_be_clickable((By.ID, 'search_variables_lb_datasets')))
    dataset_drop_down_element.select_by_visible_text(str("Query (Query)"))

HTML 是:

    <select id="search_variables_lb_datasets" class="gwt-ListBox marginbelow" style="display: inline;">
<option value="-">-</option>
<option value="CRM">CRM</option>
<option value="ESCR">ESCR</option>
<option value="ORCHARD">ORCHARD</option>
<option value="Edit_test">Edit_test</option>
<option value="Query (Query)">Query (Query)</option>
</select>

我想选择值“Query(查询)”

我可以选择这个值吗？

错误跟踪是:

Traceback (most recent call last):
  File "C:\Webdriver\ClearCore Regression Test\ClearCore - Regression Test\TestCases\StructuredSearch_TestCase.py", line 54, in test_00001_create_search_query_dataset_for_search_and_check_search_variables_dm_query_variables_are_displayed
    search_variables_dm_query_page.select_datamap_and_dataset_from_the_dropdown()
  File "C:\Webdriver\ClearCore Regression Test\ClearCore - Regression Test\Pages\Structured_Search\search_dm_query_page.py", line 90, in select_datamap_and_dataset_from_the_dropdown
    self.select_dataset_from_dataset_dropdown()
  File "C:\Webdriver\ClearCore Regression Test\ClearCore - Regression Test\Pages\Structured_Search\search_dm_query_page.py", line 79, in select_dataset_from_dataset_dropdown
    dataset_drop_down_element.select_by_visible_text(str("Query (Query)"))
AttributeError: 'WebElement' object has no attribute 'select_by_visible_text'

谢谢，里亚兹

Answer 1

select_by_visible_text() 方法可在 Select 上使用类，实例化它:

from selenium.webdriver.support.select import Select

dataset_drop_down_element = WebDriverWait(self.driver, 20).until(EC.element_to_be_clickable((By.ID, 'search_variables_lb_datasets')))
dataset_drop_down_element = Select(dataset_drop_down_element)