在Python中使用Selenium单击图像，引发无效的xpath

Question

这就是我所拥有的

for arrow in self.driver.find_elements_by_xpath("//img[contains(@src, 'disclosure_closed.gif')]/"):
            arrow.click()

但它把这个扔给了我

selenium.common.exceptions.InvalidSelectorException: Message: invalid selector: Unable to locate an element with the xpath expression //img[contains(@src, 'disclosure_closed.gif')]/ because of the following error:
SyntaxError: Failed to execute 'evaluate' on 'Document': The string '//img[contains(@src, 'disclosure_closed.gif')]/' is not a valid XPath expression.
  (Session info: chrome=42.0.2311.135)
  (Driver info: chromedriver=2.15.322448 (52179c1b310fec1797c81ea9a20326839860b7d3),platform=Windows NT 6.1 SP1 x86_64)

我也试过这样做：

image_url = "http://example.com/disclosure_closed.gif"
for arrow in self.driver.find_elements_by_xpath("//img[@src='%s']/" %(image_url)):
    arrow.click()

这是html：

<img align="top" style="cursor:pointer;" onclick="disclose('44');" id="44disclosure" src="http://example.com/disclosure_closed.gif">

Answer 1

删除xpath末尾的/。

Answer 2

看来你已经得到答案了。但是，您不需要为该标识符使用xpath。xpaths比css慢，而且(通常)也不可靠。您可以使用以下css选择器来标识相同的元素：

[src*='disclosure_closed.gif']

或者(特别是用于图像)

img[src*='disclosure_closed.gif']