I have some very old examples, that were not updated to current sfepy yet (last
update 2012). Would you like me to send them to you? I do not have time to make
them working at the moment.
Yes, please!
No kidding, I'll gladly look at them and probably they should become a part of the official examples. (?)

For the purpose of optparse->argparse update, just replace it in shaper.py
without testing (no complicated option values here).

By doing that, I finished the transition (and sent a pull request already).