Steve Alexander writes:
 > There's a RequestContainer instance at the top of the acquisition list,
 > as accessed through aq_parent or through aq_inner.aq_parent.
 > Previously, with recursive acquisition hacks, you could tell that you
 > were at the end of the trail because aq_parent returned None.
 > Unfortunately, RequestContainer doesn't seem to be acquisition-wrapped,
 > and doesn't support the aq_* attributes.
So, you are at the end, if "aq_parent" either returns "None"
or does not exist.
If it does not exist, you may perhaps go back to the previous


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