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This is the first comprehensive documentation on the transaction package.
ACID (atomicity, consistency, isolation, durability) is a very convienent feature of ZODB. Along with transactions it makes programming ZODB an enjoyable experience for the Python programmer. All persistent ZODB operations are controlled by commit/abort using the transaction package. Carlos describes integration points including datamanagers, synchronizers, and commithooks -- all integration points to wire custom code into participating with transactions. One such integration is zope.sqlalchemy which provides coordination of transactions between ZODB and SQLAlchemy data sources.
This chapter is longer than all three of the preceding chapters. It is the first comprehensive documentation on the transaction package. And it's the first chapter to use our favorite web framework Pyramid to demonstrate usage in a web context. Remember the transaction package does not depend on the ZODB. Spread the word.
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