python - stupid browser

main.py

import socket
import sys
from urlparse import urlparse

def main(url):
    parsed = urlparse(url)
    loc = parsed.netloc
    idx = loc.find(':')
    if idx > 0 :
        domain = loc[:idx]
        port = int(loc[idx+1:])
    else:
        domain = loc
        port = 80
    print domain, port
    browser = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

    browser.connect((domain, port))

    f = open('request.txt')

    content = f.read()

    for line in content.splitlines():
        print '<<', line
        # browser.send(line)

    browser.send(content)

    browser.send('\n')
    data = ''
    while True:
        chunk = browser.recv(4096)
        if chunk == '':
            break
        data = data + chunk

    browser.close()
    print ''
    for line in data.splitlines():
        print '>>', line

if __name__ == '__main__':
    url = sys.argv[1]
    main(url)