您可以使用Selenium Webdriver：
#!/usr/bin/env python
from contextlib import closing
from selenium.webdriver import Firefox # pip install selenium
from selenium.webdriver.support.ui import webdriverwait
# use firefox to get page with javascript generated content
with closing(Firefox()) as browser:
browser.get(url)
button = browser.find_element_by_name('button')
button.click()
# wait for the page to load
webdriverwait(browser, timeout=10).until(
lambda x: x.find_element_by_id('someId_that_must_be_on_new_page'))
# store it to string variable
page_source = browser.page_source
print(page_source)
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