[Zope] Re: Subtranscations are hacky?

Chris Withers writes:

.... What about just putting a try: ... except AttributeError around the commit_sub call in Transaction.py? What bad effects would that have? That would probably not be a good idea as it could hide serious problems. ZCatalog has a similar "try: ... except" and in its case, many trivial bugs are hidden thereby.

"hasattr(...,'commit_sub')" and "hasattr(....,'abort_sub')" would be a better approach. Dieter