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[英]How to wait before screenshot of webpage using selenium and phantomjs in python3?
[英]How to take screenshot of element using python3 and selenium
我想截取元素的屏幕截圖。 我嘗試使用下面提到的代碼:
ElementIs=driver.find_element_by_xpath(".//body/img")
ElementIs.screenshot('abc.jpg')
但有錯誤:
File "C:\Python34\lib\site-packages\selenium-2.47.1-y3.4.egg\selenium\webdriver\remote\webelement.py", line 448, in _execute return self._parent.execute(command, params)
File "C:\Python34\lib\site-packages\selenium-2.47.1-y3.4.egg\selenium\webdriver\remote\webdriver.py", line 196, in execute self.error_handler.check_response(response)
File "C:\Python34\lib\site-packages\selenium-2.47.1-py3.4.egg\selenium\webdriver\remote\errorhandler.py", line 102, in check_responsevalue = json.loads(value_json)
File "C:\Python34\lib\json\__init__.py", line 318, in loads return _default_decoder.decode(s)
File "C:\Python34\lib\json\decoder.py", line 343, in decode obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\Python34\lib\json\decoder.py", line 361, in raw_decode raise ValueError(errmsg("Expecting value", s, err.value)) from None ValueError: Expecting value: line 1 column 1 (char 0)
幾個問題:
find_elements_by_xpath
返回一個列表,您不能請求列表上的屏幕截圖。 你的意思是find_element_by_xpath
嗎?使用 Firefox,您可以:
driver = webdriver.Firefox()
qr = driver.find_element_by_css_selector('.css_class')
qr.screenshot("abc.jpg")
您可以在 find_element_by_css_selector 中使用 class、id 或 tags。
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