Javascript 在Python中使用firefox webdriver滚动后，如何单击显示的按钮？

嗨，我的问题是：我需要滚动一页，在滚动结束时出现一个按钮，一个经典的“显示更多”按钮，当我点击这个按钮时，我需要重新滚动网页，直到到达网页的结尾。 到目前为止，我所做的是：

from contextlib import closing

import time
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
from selenium.webdriver import Firefox # pip install selenium
from selenium.webdriver.support.ui import WebDriverWait
url = 'https://play.google.com/store/apps/category/GAME_ARCADE/collection/topselling_free?hl=it'
# use firefox to get page with javascript generated content
SCROLL_PAUSE_TIME = 0.5

capabilities = DesiredCapabilities.FIREFOX
capabilities["marionette"] = True

# Get scroll height
with closing(Firefox(capabilities=capabilities)) as browser:
    browser.get(url)
    last_height = browser.execute_script("return document.body.scrollHeight")
    button = None
    while True:
        if (browser.find_element_by_id('show-more-button')):
            browser.find_element_by_id('show-more-button').click()
            #print("\n\nButton found = " + str(button) + "\n\n")

        # Scroll down to bottom
        browser.execute_script("window.scrollTo(0, document.body.scrollHeight);")

        # Wait to load page
        time.sleep(SCROLL_PAUSE_TIME)

        # Calculate new scroll height and compare with last scroll height
        new_height = browser.execute_script("return document.body.scrollHeight")

        if new_height == last_height:
            break
        last_height = new_height
    # wait for the page to load

    # store it to string variable
    page_source = browser.page_source
print(page_source)

我想用这段代码检查页面中的按钮元素，如果还不存在，滚动页面。如果找到按钮元素，单击它，然后再次滚动页面“直到结束”。 此代码的问题是，当我尝试单击“查找”按钮时，我收到以下错误：

Traceback (most recent call last):
  File "/Users/gfuccio/PycharmProjects/htmlParsing/generatedHtmlParser.py", line 21, in <module>
    browser.find_element_by_id('show-more-button').click()
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/webelement.py", line 77, in click
    self._execute(Command.CLICK_ELEMENT)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/webelement.py", line 493, in _execute
    return self._parent.execute(command, params)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/webdriver.py", line 252, in execute
    self.error_handler.check_response(response)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/remote/errorhandler.py", line 194, in check_response
    raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.ElementNotInteractableException: Message:

但结果总是false，尽管滚动后生成的html包含以下元素：

<button class="play-button" id="show-more-button" style="display:none">Mostra altro</button>

Mostra altro

我知道问题在于样式属性，但是对于javascript，我认为这个值已经改变了，你不这么认为吗？因为如果我滚动页面直到找到按钮，无论我是否检查页面，我都会发现以下情况：

---

如果看到，则显示属性设置为块。那么为什么在滚动之后，我得到了由javascript生成的新html，并且元素的“style”属性没有改变呢？

selenium文档解释了错误的含义：按钮存在，但隐藏在其他dom元素后面，因此您可以单击它。

<button class="play-button" id="show-more-button" style="display:none">Mostra altro</button>