gschwind / PyWPS

(Python Web Processing Service) is an implementation of the Web processing Service standard from Open Geospatial Consortium.

PyWPS

PyWPS is an implementation of the Web Processing Service standard from the Open Geospatial Consortium. PyWPS is written in Python.

License

As of PyWPS 4.0.0, PyWPS is released under an MIT license (see LICENSE.txt).

Dependencies

See requirements.txt file

Run tests

pip install -r requirements-dev.txt
# run unit tests
python -m pytest tests
# run code coverage
python -m coverage run --source=pywps -m unittest tests
python -m coverage report -m

Run web application

Example service

Clone the example service after having installed PyWPS:

git clone git://github.com/geopython/pywps-flask.git pywps-flask
cd pywps-flask
python demo.py

Apache configuration

1. Enable WSGI extension

2. Add configuration:

   WSGIDaemonProcess pywps user=user group=group processes=2 threads=5
   WSGIScriptAlias /pywps /path/to/www/htdocs/wps/pywps.wsgi
   
   <Directory /path/to/www/htdocs/wps/>
       WSGIProcessGroup group
       WSGIApplicationGroup %{GLOBAL}
       Order deny,allow
       Allow from all
   </Directory>

3. Create wsgi file:

   #!/usr/bin/env python3
   import sys
   sys.path.append('/path/to/src/pywps/')
   
   import pywps
   from pywps.app import Service, WPS, Process
   
   def pr1():
       """This is the execute method of the process
       """
       pass
   
   
   application = Service(processes=[Process(pr1)])

4. Run via web browser

   http://localhost/pywps/?service=WPS&request=GetCapabilities&version=1.0.0

5. Run in command line:

   curl 'http://localhost/pywps/?service=WPS&request=GetCapabilities&version=1.0.0'

Issues

On Windows PyWPS does not support multiprocessing which is used when making requests storing the response document and updating the status to displaying to the user the progression of a process.