总体布局（未经测试）：

#!/usr/bin/env python
from contextlib import closing
from selenium.webdriver import Firefox # pip install selenium

url = "http://example.com"

# use firefox to get page with javascript generated content
with closing(Firefox()) as browser:
    n = 1
    while n < 10:
        browser.get(url) # load page
        link = browser.find_element_by_link_text(str(n))
        while link:
           browser.get(link.get_attribute("href")) # get individual 1,2,3,4 pages
           #### save(browser.page_source)
           browser.back() # return to page that has 1,2,3,next -like links
           n += 1
           link = browser.find_element_by_link_text(str(n))

        link = browser.find_element_by_link_text("next")
        if not link: break
        url = link.get_attribute("href")