Selenium：元素当前不可见，因此可能无法交互

Question

我正在尝试为 netflix 网站创建一个自动登录脚本：https://www.netflix.com/it/

代码如下：

from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver = webdriver.Firefox()
while True:
    driver.get("https://www.netflix.com/it/")
    login = driver.find_element_by_css_selector(".authLinks.signupBasicHeader")
    login.click()
    element = driver.find_element_by_name("email")
    element.send_keys("test1@email.com")
    submit = driver.find_element_by_css_selector(".btn.login-button.btn-submit.btn-small")
    submit.click()
    element2 = driver.find_element_by_name("password")
    element2.send_keys("test1")
    submit.click()

但有时有效，有时无效，并引发此异常：

Traceback (most recent call last):
  File "netflix.py", line 35, in <module>
    submit.click()
  File "/home/user/.local/lib/python3.5/site-packages/selenium/webdriver/remote/webelement.py", line 72, in click
    self._execute(Command.CLICK_ELEMENT)
  File "/home/user/.local/lib/python3.5/site-packages/selenium/webdriver/remote/webelement.py", line 461, in _execute
    return self._parent.execute(command, params)
  File "/home/user/.local/lib/python3.5/site-packages/selenium/webdriver/remote/webdriver.py", line 236, in execute
    self.error_handler.check_response(response)
  File "/home/user/.local/lib/python3.5/site-packages/selenium/webdriver/remote/errorhandler.py", line 192, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.ElementNotVisibleException: Message: Element is not currently visible and so may not be interacted with
Stacktrace:
    at fxdriver.preconditions.visible (file:///tmp/tmp7otgskq8/extensions/fxdriver@googlecode.com/components/command-processor.js:10092)
    at DelayedCommand.prototype.checkPreconditions_ (file:///tmp/tmp7otgskq8/extensions/fxdriver@googlecode.com/components/command-processor.js:12644)
    at DelayedCommand.prototype.executeInternal_/h (file:///tmp/tmp7otgskq8/extensions/fxdriver@googlecode.com/components/command-processor.js:12661)
    at DelayedCommand.prototype.executeInternal_ (file:///tmp/tmp7otgskq8/extensions/fxdriver@googlecode.com/components/command-processor.js:12666)
    at DelayedCommand.prototype.execute/< (file:///tmp/tmp7otgskq8/extensions/fxdriver@googlecode.com/components/command-processor.js:12608)

该异常表示网页的一部分是不可见的（即使该部分实际上在页面中）...这是一种错误。 我怎样才能绕过这个？

Answer 1

不需要将测试代码放在while循环中，因为登录表单应该提交一次。我猜当它成功运行时，下一次迭代会出错，因为没有表单。

您还在输入密码之前和之后单击提交按钮。如果可能，最好在表格填满后单击，而不是测试空表格。

from selenium import webdriver

driver = webdriver.Firefox()
driver.get("https://www.netflix.com/it/")
login = driver.find_element_by_css_selector(".authLinks.signupBasicHeader")
login.click()
element = driver.find_element_by_name("email")
element.send_keys("test1@email.com")
submit = driver.find_element_by_css_selector(".btn.login-button.btn-submit.btn-small")
submit.click()
element2 = driver.find_element_by_name("password")
element2.send_keys("test1")
submit = driver.find_element_by_css_selector(".btn.login-button.btn-submit.btn-small")
submit.click()