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buildout.dumppickedversions =========================== Q: What is a buildout extension ? A: http://pypi.python.org/pypi/zc.buildout#extensions The problem ----------- When using a zc.buildout based deployment system you want to be able to reproduce the same setup with the same set of egg versions one month later. Without pinning all eggs the task is impossible. Solution -------- ``buildout.dumppickedversions`` is a buildout extension that does just that. It can print or generate a versions.cfg file with all not pinned eggs. It adds also a comment before each egg picked by zc.buildout as requirment for other eggs containing the list of eggs that required it. buildout.dumppickedversions options ----------------------------------- dump-picked-versions-file A file name you want ``buildout.dumppickedversions`` to write to. If not given ``buildout.dumppickedversions`` will dump the versions to the screen. overwrite-picked-versions-file If set to ``true``, ``buildout.dumppickedversions`` will overwrite the file defined in ``dump-picked-versions-file`` if it exists. Defaults to True.