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gevent v20.6.0 Release Notes

Release Date: 2020-06-06 // almost 4 years ago

  • 🔋 Features

    • ➕ Add gevent.selectors containing GeventSelector. This selector implementation uses gevent details to attempt to reduce overhead when polling many file descriptors, only some of which become ready at any given time.

    This is monkey-patched as selectors.DefaultSelector by default.

    This is available on Python 2 if the selectors2 backport is installed. (This backport is installed automatically using the recommended extra.) When monkey-patching, selectors is made available as an alias to this module. See :issue:1532.

    • Depend on greenlet >= 0.4.16. This is required for CPython 3.9 and 3.10a0. See :issue:1627.
    • ➕ Add support for Python 3.9.

    No binary wheels are available yet, however. See :issue:1628.

    🛠 Bugfixes

    • gevent.socket.create_connection and gevent.socket.socket.connect no longer ignore IPv6 scope IDs.

    Any IP address (IPv4 or IPv6) is no longer subject to an extra call to getaddrinfo. Depending on the resolver in use, this is likely to change the number and order of greenlet switches. (On Windows, in particular test cases when there are no other greenlets running, it has been observed to lead to LoopExit in scenarios that didn't produce that before.) See :issue:1634.