python如何使用mechanize模块实现不断刷新网页的功能

python通过mechanize模块实现不断刷新网页的功能，你可以通过命令行指定一个网页，程序将通过浏览器打开此页面并且不断的刷新，可以通过键盘随时终止，mechanize模块可以通过easy_install或者pip安装

import mechanize
import sys

def usage():
    print "Usage: python" + ' ' + sys.argv[0] + ' ' + "<url>"
    sys.exit()

def reloader():
    br = mechanize.Browser()
    reload_count = 0
    url = sys.argv[1]
    start = br.open(url)

    while True:
        try:
            br.reload()
            reload_count += 1
            print "[+] Sent reload request", "%s" % (reload_count)
        except KeyboardInterrupt:
            sys.exit("\nProcess aborted.")

if len(sys.argv) < 2:
    usage()

if __name__ == "__main__":
    reloader()