Re: Exception difference 2.4 ==> 2.5

[D'Arcy J.M. Cain]

On Wed, 19 Nov 2008 17:08:13 -0500
Terry Reedy <tj*****@udel.eduwrote:

am running Python 2.5.2. I was able to reduce the program to a
reasonably small version that exhibits the problem. It is in two files
in ftp://ftp.druid.net/pub/distrib/Test_2.5.tgz including Fredrik
Lundh's simple XML-RPC server. Just run the test program under 2.4,
2.5 and 2.6 to see the difference.

Report it on the bugs.python.org and it might possibly get fixed.

OK but I still don't think that I have even zeroed in on the bug. Even
the code I provided is pretty large and complex for a snippet meant to
identify the problem.

I managed to move everything into one test file and switched to the
SimpleXMLRPCServer module but to no avail. The new code is at
ftp://ftp.druid.net/pub/distrib/test_2.5

--
D'Arcy J.M. Cain <da***@druid.net | Democracy is three wolves
http://www.druid.net/darcy/ | and a sheep voting on
[phone] (DoD#0082) (eNTP) | what's for dinner.

[Ross Ridge]

D'Arcy J.M. Cain <da***@druid.netwrote:

>I managed to move everything into one test file and switched to the
SimpleXMLRPCServer module but to no avail. The new code is at
ftp://ftp.druid.net/pub/distrib/test_2.5

It seems be this issue:

http://bugs.python.org/issue1739842

Your handler in the server thread correctly catches the RuntimeException
and converts into a Fault object which it returns. Unfortunately,
xmlrpclib then throws an exception instead of marshalling the Fault
object. Your server catches the exception and turns it into a 500
HTTP server error. The client thread then throws a ProtocolError,
which is uncaught.

So exceptions are working fine in your test case, the problem is that
xmlrpclib.dumps() can't marshall xmlrpclib.Fault objects in 2.5.

Ross Ridge

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