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=========== What is it? =========== The ``zc.async`` package provides **an easy-to-use Python tool that schedules work persistently and reliably across multiple processes and machines.** For instance... - *Web apps*: maybe your web application lets users request the creation of a large PDF, or some other expensive task. - *Postponed work*: maybe you have a job that needs to be done at a certain time, not right now. - *Parallel processing*: maybe you have a long-running problem that can be made to complete faster by splitting it up into discrete parts, each performed in parallel, across multiple machines. - *Serial processing*: maybe you want to decompose and serialize a job. High-level features include the following: - easy to use; - flexible configuration, changeable dynamically in production; - reliable; - supports high availability; - good debugging tools; - well-tested; and - friendly to testing. While developed as part of the Zope project, zc.async can be used stand-alone. ================= How does it work? ================= The system uses the Zope Object Database (ZODB), a transactional, pickle-based Python object database, for communication and coordination among participating processes. zc.async participants can each run in their own process, or share a process (run in threads) with other code. The Twisted framework supplies some code (failures and reactor implementations, primarily) and some concepts to the package. ====================== Where can I read more? ====================== Quickstarts and in-depth documentation are available in the package and in the `new and exciting on-line documentation`_. .. _`new and exciting on-line documentation`: http://packages.python.org/zc.async/1.5.0/