PyWPS-Demo comes with configuration file, which shall work for both - Flask and
Apache2 deployment. It’s stored in
pywps.cfg some default values. You
are adviced to play with the configuration values and see what they do. More
detailed documentation about PyWPS configuraition can be found at http://pywps.readthedocs.io/en/latest/configuration.html
Also have a look at File structure of PyWPS-Demo chapter, which describes file and directory structure of PyWPS-Demo.