[PyWPS-dev] A question about PyWPS and celery demo

[Suzana Barreto]

Hi Everyone,

Seasons greatings ;-). I am currently trying to find out if it is possible
to use python Celery with PyWPS.  I have had a look at the following docker
demo project https://github.com/fderue/pywps_celery_demo.  This works but
is unfortunately running under python 2.7.  My PyWPS server instance is
running under 3.6, having run the celery example under 3.6, the server
fails because it cannot serialize the job.  The errors I get are "TypeError:
write() argument must be str, not bytes" from the job.dump function, and if
I change the function so that it opens the file in binary mode, then I get "
io.UnsupportedOperation: underlying stream is not seekable" .
Does anyone know why this code is not 3.6 compatible?  Does anyone know how
I might be able to fix this?

I have also tried to serialise the wps_response and wps_request objects
separately but these are not serializable although the Process is.  Any
help would be greatly appreciated.

Thanks in advance,
Suzana
-- 



*Dr Suzana BarretoSoftware AnalystEnvironment Systems*
Tel: +44 (0) 1970 626688
www.envsys.co.uk

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