Jim Fulton comments

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                                            Jim Fulton

Current approach doesn't work with two-phase commit

I just released: https://pypi.python.org/pypi/psycopg2transaction To use this with pq, I have to remove the trigger and then get ``psycopg2transaction`` to send the notification: https://github.com/zc/twotieredkanban/blob/master/server/zc/twotieredkanban/email.py It would be nice of ``create``...

FTR I'm planning on using Trollius to support Python 2 in ZEO (part of the ZODB project)

Feel free to close this when you've seen it. It's really just FTR.

FTR I'm planning on using Trollius to support Python 2 in ZEO (part of the ZODB project)

Woo hoo, all ZEO tests pass with Trollius and Python 2.7.

Moderately large BTrees fail to pickle with `RuntimeError: maximum recursion depth exceeded`

I wonder what use cases is motivating this.

Moderately large BTrees fail to pickle with `RuntimeError: maximum recursion depth exceeded`

There's nothing in the document that indicates to me a need to pickle a BTree. Is there some implicit assumption that you aren't using ZODB? If so, why dat? :)

Moderately large BTrees fail to pickle with `RuntimeError: maximum recursion depth exceeded`

That's a bummer. If you feel like mentioning the issues you ran into, maybe on the ZODB list, I'd be interested to see if Ican help. ZODB (or some of...

Moderately large BTrees fail to pickle with `RuntimeError: maximum recursion depth exceeded`

If ZODB isn't involved, it it practical to pickle BTree items?

Shared read-only state between objects with copy on write

This cache would be keyed by oid + serial, so it would be orthogonal to MVCC. It would store Python objects, so there would be no additional deserialization overhead. Because...

Shared read-only state between objects with copy on write

If we could store non-dicts as `__dict__`, then we could use immutable dicts as shared state and trigger copy on failed __setitem__ (or on noticing non-dicts), requiring no change to...