Chris Withers writes:
 > ....
 > What about just putting a try: ... except
 > AttributeError around the commit_sub call in 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.


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