Error HTTP protocol (Server Zope 2.6.1)

import httplib
site="sandbox.rulemaker.net"
conn = httplib.HTTPConnection(site)
conn.set_debuglevel(3)
headers={}

conn.request("GET", "/ngps/Dist/m2crypto-0.11.zip","",headers)
r = conn.getresponse()

print "code ",r.status, r.reason, r.length
while 1:
data = r.read(8192)
if not data: break
print data
r.close()
conn.close()

HOST = 'sandbox.rulemaker.net' # The remote host
PORT = 80 # The same port as used by the server
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))
s.send('GET /ngps/Dist/m2crypto-0.11.zip HTTP/1.1\r\nHost: sandbox.rulemaker.net\r\nAccept-Encoding: identity\r\n\r\n')
data = s.recv(8092)
print data
s.close()

response:

HTTP/1.1 200 OK
Server: Zope/(Zope 2.6.1 (source release, python 2.1, freebsd4)<CR><LF>
, python 2.1.3, freebsd4) ZServer/1.1b1
Date: Mon, 15 Sep 2003 07:23:04 GMT
Content-Type: application/zip
Accept-Ranges: bytes
Etag:
Content-Length: 404629
Last-Modified: Mon, 23 Jun 2003 18:28:52 GMT

There is an error in the 'Server' header line (<CR><LF> in string 'Server' line).

httplib can't read the entire header.

Regards, vincent jaulin.