This is due to r75412 (yes, mine). The proper fix would be to add
support for the new buffer API to the _ssl module.

testSocketServer (test.test_ssl.ThreadedTests) ...
server (('127.0.0.1', 52011):52011 ('AES256-SHA', 'TLSv1/SSLv3', 256)):
[15/Oct/2009 00:42:18] "GET /keycert.pem HTTP/1.0" 200 -
----------------------------------------

Exception happened during processing of request from ('127.0.0.1', 48099)
Traceback (most recent call last):
  File "/home/antoine/cpython/__svn__/Lib/SocketServer.py", line 282, in
_handle_request_noblock
    self.process_request(request, client_address)
  File "/home/antoine/cpython/__svn__/Lib/SocketServer.py", line 308, in
process_request
    self.finish_request(request, client_address)
  File "/home/antoine/cpython/__svn__/Lib/SocketServer.py", line 321, in
finish_request
    self.RequestHandlerClass(request, client_address, self)
  File "/home/antoine/cpython/__svn__/Lib/SocketServer.py", line 639, in
__init__
    self.finish()
  File "/home/antoine/cpython/__svn__/Lib/SocketServer.py", line 692, in
finish
    self.wfile.flush()
  File "/home/antoine/cpython/__svn__/Lib/socket.py", line 300, in flush
    self._sock.sendall(view[write_offset:write_offset+buffer_size])
  File "/home/antoine/cpython/__svn__/Lib/ssl.py", line 203, in sendall
    v = self.send(data[count:])
  File "/home/antoine/cpython/__svn__/Lib/ssl.py", line 94, in <lambda>
    self.send = lambda data, flags=0: SSLSocket.send(self, data, flags)
  File "/home/antoine/cpython/__svn__/Lib/ssl.py", line 174, in send
    v = self._sslobj.write(data)
TypeError: must be string or read-only buffer, not memoryview
----------------------------------------

Traceback (most recent call last):
  File "/home/antoine/cpython/__svn__/Lib/test/test_ssl.py", line 972,
in testSocketServer
    f = urllib.urlopen(url)
  File "/home/antoine/cpython/__svn__/Lib/urllib.py", line 87, in urlopen
    return opener.open(url)
  File "/home/antoine/cpython/__svn__/Lib/urllib.py", line 206, in open
    return getattr(self, name)(url)
  File "/home/antoine/cpython/__svn__/Lib/urllib.py", line 445, in
open_https
    'got a bad status line', None)
IOError: ('http protocol error', 0, 'got a bad status line', None)
ERROR

Here is a possible patch.

Reviewed, built, tests ok.

Linux trader 2.6.18-ARCH #1 SMP PREEMPT Sun Nov 19 09:14:35 CET 2006
i686 Intel(R) Pentium(R) 4 CPU 2.40GHz GenuineIntel GNU/Linux

vote +1 weight +0.1 :-)

Is there some reason that this is not being checked
in? The build has been broken for five days. IMO,
either revert the offending code or check this in.

I was hoping for Bill (the _ssl maintainer)'s opinion on this, but
you're right, it should be checked in.

Committed in r75529.

I am still getting this error with SocketServer in Python 2.7.2, even though it looks the same as was fixed in bpo-7133:

File "/usr/local/lib/python2.7/SocketServer.py", line 284, in _handle_request_noblock
self.process_request(request, client_address)
File "/usr/local/lib/python2.7/SocketServer.py", line 310, in process_request
self.finish_request(request, client_address)
File "/usr/local/lib/python2.7/SocketServer.py", line 323, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/usr/local/lib/python2.7/SocketServer.py", line 641, in __init__
self.finish()
File "/usr/local/lib/python2.7/SocketServer.py", line 694, in finish
self.wfile.flush()
File "/usr/local/lib/python2.7/socket.py", line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
TypeError: must be string or read-only buffer, not memoryview

Keith

Keith, was your python compiled with ssl? Any extra information to reproduce this can help. (Download 2.7.2 from python.org, do a ./configure;make and verify if this can bug can be reproduced).

Senthil: thanks for the reply. That's how I did build python 2.7.2 anyway. But I can't see anything about SSL in the generated config files. However, on another system (Fedora 15 with python 2.7.1), I don't get the problem.
In case it's useful, I was trying to run the recipe http://code.activestate.com/recipes/573444-threaded-documenting-xml-rpc-server-over-https/?c=13559 when this crash happened. Is there something in that recipe which is not compatible with the current python modules?

Keith