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        "author": "David Wolever",
        "author_email": "david@wolever.net",
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        "description": "gevent-helpers\n==============\n\n``gevent-helpers`` contains a collection of utilities which are helpful while\ndeveloping with ``gevent``.\n\nCompatible with ``gevent==1.0rc3``.\n\nfork()\n------\nA workaround for `gevent issue 154`__, until that issue is fixed.\n\n__ http://code.google.com/p/gevent/issues/detail?id=154\n\nBlockingDetector(timeout=1, raise_exc=AlarmInterrupt, aggressive=True)\n----------------------------------------------------------------------\n\nUse operating system signals to detect blocking threads.\n\n``timeout=1`` is the number of seconds to wait before considering the\nthread blocked (note: if ``signal.setitimer`` or the ``itimer`` package is\navailable, this can be a real number; otherwise it will be rounded up to\nthe nearest integer).\n\n``raise_exc=AlarmInterrupt`` controls which exception will be raised\nin the blocking thread. If ``raise_exc`` is False-ish, no exception will be\nraised (a ``log.warning`` message, including stack trace, will always be\nissued). **NOTE**: the default value, ``AlarmInterrupt``, is a subclass of\n``BaseException``, so it *will not* be caught by ``except Exception:`` (it\nwill be caught by ``dirt.runloop``). For example::\n\n    # Don't raise an exception, only log a warning message and stack trace:\n    BlockingDetector(raise_exc=False)\n\n    # Raise ``MyException()`` and lot a warning message:\n    BlockingDetector(raise_exc=MyException())\n\n    # Raise ``MyException(\"blocking detected after timeout=...\")`` and log\n    # a warning message:\n    BlockingDetector(raise_exc=MyException)\n\n``aggressive=True`` determines whether the blocking detector will reset\nas soon as it is triggered, or whether it will wait until the blocking\nthread yields before it resets. For example, if ``aggressive=True``,\n``raise_exc=False``, and ``timeout=1``, a log message will be written for\nevery second that a thread blocks. However, if ``aggressive=False``, only\none log message will be written until the blocking thread yields, at which\npoint the alarm will be reset.\n\nNote: ``BlockingDetector`` overwrites the ``signal.SIGALRM`` handler and\ndoes not attempt to save the previous value.\n\nFor example::\n\n    >>> def spinblock():\n    ...     while True:\n    ...         pass\n    >>> gevent.spawn(BlockingDetector())\n    >>> gevent.sleep()\n    >>> spinblock()\n    Traceback (most recent call last):\n      File \"<stdin>\", line 1, in <module>\n      File \"<stdin>\", line 3, in spinblock\n      File \".../dirt/misc/gevent_.py\", line 167, in alarm_handler\n        raise exc\n    gevent_helpers.AlarmInterrupt: blocking detected after timeout=1",
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