Selenium cannot do this (network traffic capture). I would suggest using a third-party tool like Browser Mob
, ... . , os.path.getmtime
import os
from selenium import webdriver
fp = webdriver.FirefoxProfile()
fp.set_preference("browser.download.folderList",2)
fp.set_preference("browser.download.manager.showWhenStarting",False)
fp.set_preference("browser.download.dir", "/tmp/empty-dir")
fp.set_preference("browser.helperApps.neverAsk.saveToDisk", "application/octet-stream")
browser = webdriver.Firefox(firefox_profile=fp)
browser.get("http://pypi.python.org/pypi/selenium")
browser.find_element_by_partial_link_text("selenium-2").click()
os.listdir("/tmp/empty-dir")
['selenium-2.44.0.tar.gz']