Following discussion in pull request#110 (in particular,#110 (comment)), this issue is to decide whether to switch to using thesuper function when accessing members of parent classes.

Relevant reading in the Python documentation ishttps://docs.python.org/3/library/functions.html#super

At the current tip ofmaster branch, I found three relevant parts of the code:

• line 208 of xferfcn.py
• line 153 of frdata.py
• line 128 of statesp.py