simple.py not found

[gnubug]

I just installed sfepy and tried to test it like:

wget http://sfepy.org/doc-devel/_downloads/poisson_short_syntax.py
sfepy-run simple poisson_short_syntax.py

Doing so I get the follwing error message:

python: can't open file 'simple.py': [Errno 2] No such file or directory

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: python-sfepy 2016.2-4
ProcVersionSignature: Ubuntu 4.15.0-34.37-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: amd64
Date: Wed Oct 3 22:14:00 2018
InstallationDate: Installed on 2018-08-23 (41 days ago)
InstallationMedia: Lubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
SourcePackage: sfepy
UpgradeStatus: No upgrade log present (probably fresh install)