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A PEP3156 interface for various event loops

Project description


This package contains EventLoop implementations for various well known event loops. The EventLoop interface is currently being defined in PEP3156 [1] and the “Tulip” project [2].

Curently supported event loops are:

  • libuv (via pyuv)
  • Qt (via PySide)

This package supports Python 2.6, Python 2.7 and Python 3.2+.

The event loops only implement the callback interface, so e.g. add_reader() and friends, the call_soon() timer related functions, and the add_signal_handler() signal related functions. The other parts of the event loop interface require tulip.Future which in turn depends on the yield from statement. This is Python 3.3+ and is not supported in looping.


The looping package defines two event loops:

  • PyUVEventLoop. This loop will be available if the pyuv package is found.
  • PySideEventLoop. This loop will be avaialble if the PySide package is found.

You can set a default loop for the current thread using set_event_loop().


This package is licensed under the Apache 2 license (like tulip).


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