[SciPy-Dev] import scipy.stats hangs in mod_python application
Mon Aug 29 01:16:39 CDT 2011
On Mon, Aug 29, 2011 at 00:32, fork <email@example.com> wrote:
> Robert Kern <robert.kern <at> gmail.com> writes:
>> On Sun, Aug 28, 2011 at 20:38, fork <forkandwait <at> gmail.com> wrote:
>> > Robert Kern <robert.kern <at> gmail.com> writes:
>> >> So, has your program ever worked under mod_python? Is this an
>> >> intermittent problem, or is it reliably repeatable? In your program,
>> >> do you import numpy before the scipy.stats import?
>> > Yeah, worked great until last week.
>> Would you mind answering all of the questions rather than just the first?
> Sorry (hehe) ... worked great for years, reliable problem, import numpy (and
> scipy) before scipy.stats.
Hmm. Check what shared libraries are being linked to all of the scipy
extension modules. There might be environment variables affecting how
the shared libraries get resolved.
>> Can you identify what changed last week? Did you change your program? Did you
>> upgrade Apache/mod_python? That's going to be the only way to figure out what
>> is wrong.
> We upgraded the default python on gentoo from 2.6 to 2.7, so, like, everything
> changed and it is almost impossible to say what exactly. My partner helped
> upgrade a bunch of math libraries, but I wasn't part of that so don't know
> exactly (yet...). I don't *believe* that apache got upgraded, and mod_python is
> definitely not upgraded, but it was reinstalled.
>> You may want to take a quick look at a couple of the WSGI
>> micro-frameworks around to see if they might be able to quickly
>> implement the dispatching you need.
> That is great advice, but (1) I am still smarting from depending on a framework
> that got dropped from current development (three years ago cherrypy would have
> been in the list above), and
FWIW, CherryPy is still being developed:
"I have come to believe that the whole world is an enigma, a harmless
enigma that is made terrible by our own mad attempt to interpret it as
though it had an underlying truth."
-- Umberto Eco
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