无法找到Selenium和Python的复选框元素

Question

​

​

这是仅复选框的HTML代码：

​

<table id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True" border="0">
			<tbody><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_0" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$0"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_0">Cracked Case</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_1" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$1"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_1">Cracked Case (Upper Half)</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_2" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$2"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_2">Cracked Face Plate</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_3" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$3"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_3">Deep Scratches</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_4" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$4"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_4">Discolored Case</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_5" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$5"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_5">Light Scratches In Case</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_6" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$6"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_6">Major Cracks</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_7" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$7"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_7">Major Scratches</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_8" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$8"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_8">Minor Cracks</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_9" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$9"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_9">Minor Scratches</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_10" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$10"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_10">Missing Port Cover</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_11" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$11"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_11">Missing Side Panel</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_12" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$12"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_12">No Back Cover</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_13" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$13"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_13">No Bay Cover</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_14" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$14"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_14">No Face Plate</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_15" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$15"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_15">Open Box</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_16" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$16"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_16">Open Box, Sealed Unit</label></td><td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_17" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$17"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_17">Scratches In Screen</label></td>
			</tr><tr>
				<td><input id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_18" type="checkbox" name="rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38788_24582_73_0_True$18"><label for="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38788_24582_73_0_True_18">Sealed Box</label></td><td></td>
			</tr>
		</tbody></table>

​

大家好!这个问题很简单，同时也很复杂，在图片中是我要点击的目标，这是一个复选框，它无论如何都应该很容易找到目标，但由于某种原因，Python一直向我抛出这个错误(我以前遇到了这个错误，但现在我无法绕过它)：

Traceback (most recent call last):
  File "C:\Users\AMSUser\AppData\Local\Programs\Python\Python35-32\Scripts\Add Asset.py", line 167, in <module>
    nobackcover = browser.find_element_by_xpath('//*[@id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38774_24566_73_0_True_12"]')
  File "C:\Users\AMSUser\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 293, in find_element_by_xpath
    return self.find_element(by=By.XPATH, value=xpath)
  File "C:\Users\AMSUser\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 752, in find_element
    'value': value})['value']
  File "C:\Users\AMSUser\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 236, in execute
    self.error_handler.check_response(response)
  File "C:\Users\AMSUser\AppData\Local\Programs\Python\Python35-32\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 192, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.NoSuchElementException: Message: no such element: Unable to locate element: {"method":"xpath","selector":"//*[@id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38774_24566_73_0_True_12"]"}
  (Session info: chrome=52.0.2743.116)
  (Driver info: chromedriver=2.23.409699 (49b0fa931cda1caad0ae15b7d1b68004acd05129),platform=Windows NT 10.0.14393 x86_64)

或变体，如果我使用名称或id目标复选框。

当我使用Chrome developer工具复制xpath元素时，我得到了以下内容：

"//*[@id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38760_24576_73_0_True_12"]".

这是我目前使用的代码：

#Here i open the checkbox menu that gives me the checkbox i need to click
Cosmeticselect = browser.find_element_by_xpath('//*[@id="rmaAssetCosmeticComponents_ctl00_btnAdd"]')
Cosmeticselect.click()
#2 seconds delay because it takes a second to load.
time.sleep(2)
#I have tried several iterations of this none give me the desire output, maybe this checkbox is in another iframe? if so i have yet to find it in the code.
nobackcover = browser.find_element_by_id('rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38776_24568_73_0_True_12')
#nobackcover = browser.find_element_by_xpath('//*[@id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38775_24567_73_0_True"]/tbody/tr[7]/td[1]/label')
#nobackcover = browser.find_element_by_name('rmaAssetCosmeticComponents$ctl00$CheckBoxList_Comp_17_38778_24570_73_0_True$12')
nobackcover.click()

我怀疑我必须切换到化妆品“窗口”，但我还没有找到关于iframe等的参考，我会继续研究，当我找到解决办法时，我会把它张贴出来，但如果有人想给这个问题增加一双新的眼睛，我会很感激的。

Answer 1

在使用html代码进行更新之前，您可以尝试以下这些：

css

input[id*='rmaAssetCosmeticComponents'][id*='True_12']

xpath's

//input[text()='No Back Cover']或

//input[contains(@id, 'rmaAssetCosmeticComponents')][contains(@id, 'True_12')]

跳过id的最后一部分不改变时，可以根据未更改的ht属性部分创建选择器，也可以基于元素中包含的文本创建选择器。

Answer 2

首先，确保您的路径(//[@id="rmaAssetCosmeticComponents_ctl00_CheckBoxList_Comp_17_38774_24566_73_0_True_12")可以使用Selenium IDE指向正确的元素。

第二，使用WebElement等待元素可单击或元素的存在。