import sys

if sys.argv[1] == 'client':
    from http.client import HTTPConnection

    conn = HTTPConnection('localhost', 8080)
    conn.putrequest('GET', '/')
    conn.endheaders()
    conn.send(b'\r\n\r\n')
    response = conn.getresponse()
    print(response.headers.defects)
    conn.close()

else:
    from http.server import BaseHTTPRequestHandler, HTTPServer

    class Handler(BaseHTTPRequestHandler):
        def do_GET(self):
            self.send_response(200)
            self.send_header('Content-Type', 'multipart/mixed; boundary=boundary')
            self.end_headers()
            self.wfile.write(b'--boundary\r\nContent-Type:text/plain\r\n\r\nhello\r\n\r\n--boundary--')
            return

    server = HTTPServer(('localhost', 8080), Handler)
    server.serve_forever()