...

The "check failed: no response" does not indicate a problem, as this test does not pass in an actual properly-formatted email message. If you have an actual message handy, use that for your test; you should see output similar to:

...
Oct  6 19:34:05.896 [14864] dbg: pyzor: network tests on, attempting Pyzor
Oct  6 19:34:10.940 [14864] dbg: pyzor: pyzor is available: /bin/pyzor
Oct  6 19:34:10.942 [14864] dbg: pyzor: opening pipe: /bin/pyzor --homedir /some/dir/.pyzor check < /tmp/.spamassassin14864qX2Rmwtmp
Oct  6 19:34:11.248 [14864] dbg: pyzor: [14866] finished: exit 1
Oct  6 19:34:11.248 [14864] dbg: pyzor: got response: public.pyzor.org:24441 (200, 'OK') 0 0
...

Pyzor on Debian

If you are using Debian, a pyzor package is available in the stable distribution.

...

• Download and install ActivePython from www.activestate.com.
• Download and install Pyzor from http://pyzor.sourceforge.net/. You'll need something that can un-bzip2 the files. Installing simply means running the following from the folder you extracted pyzor into:

  No Format
  python setup.py build python setup.py install

• Create a folder somewhere for the pyzor config files. You can use your spamassassin folder if you like as it only creates a single file called servers. I used c:/python24/etc/pyzor
• Create a pyzor.bat in your python folder (c:\python24 by default when I installed it), containing the following line, modified for your python folder path.

  No Format
  @c:\python24\python c:/python24/scripts/pyzor --homedir c:/python24/etc/pyzor %1 %2 %3 %4 %5 %6 %7 %8 %9

• Edit /Lib/site-packages/pyzor/client.py with the following changes:
  • Find signal.signal(signal.SIGALRM, handle_timeout) and put a # in front of it.
  • Find the section for: def time_call(self, call, varargs=(), kwargs=None): and change it to read like this:

    No Format
    def time_call(self, call, varargs=(), kwargs=None): if kwargs is None: kwargs = {} return apply(call, varargs, kwargs)

• From a command prompt in the python folder context, run the following where /python/pyzor is the folder you created in the previous step.

  No Format
  pyzor discover

• Now you are ready to configure SpamAssassin to use it.
• (This is not necessary in v3.1.7) Edit your /site/lib/mail/spamassassin/Util.pm. Find the "sub helper_app_pipe_open_windows" section and the line that reads

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  if ($stdinfile) { $cmd .= " <'$stdinfile'"; }"

  and replace it with

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  if ($stdinfile) { $cmd .= " <\"$stdinfile\""; }"

  because Windows won't pipe a file with a space after the < and single quotes around it.
  
• Edit v310.pre and uncomment the load for the Pyzor plugin.
• Edit your local.cf and add configuration lines for pyzor. For example:

  No Format
  use_pyzor 1 pyzor_path c:\python24\pyzor.bat pyzor_timeout 10

• That should do it. If you do a spamassassin --lint -D you should see pyzor