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  • [Python-announce] [Release] Pyo 1.1.0 (Python DSP Library)

    From =?UTF-8?Q?Olivier_B=C3=A9langer?=@[email protected] to comp.lang.python.announce on Fri Oct 9 16:37:06 2026
    From Newsgroup: comp.lang.python.announce

    Hello all,

    I'm very happy to announce the release of pyo 1.1.0, available for the following
    Python versions:

    3.11 (Windows amd64, macOS arm64, Linux x86_64)
    3.12 (Windows amd64, macOS arm64, Linux x86_64)
    3.13 (Windows amd64, macOS arm64, Linux x86_64)
    3.14 (Windows amd64, macOS arm64, Linux x86_64)

    Pyo is a Python module written in C to help real-time digital signal
    processing
    script creation. It provides a complete set of classes to build audio
    software,
    compose algorithmic music or simply explore audio processing. It is
    available for
    Windows, macOS and Linux. It is released under the LGPL 3 license.

    Official website: https://github.com/belangeo/pyo

    pyo's documentation: https://belangeo.github.io/pyo/

    Latest sources and bug tracker: https://github.com/belangeo/pyo

    Installation:

    python -m pip install --user pyo


    WHAT CHANGED IN VERSION 1.1.0:

    New features:

    - Added CallAlways, which calls a Python function every processing frame.
    - Added context-manager support to the Server object.
    - Added PEP 489 multi-phase module initialization and support for multiple
    sub-interpreters. Python types and module/runtime state are now local to
    each
    interpreter.
    - Added spectral domain and 2D table (matrix) examples to the documentation.

    Build and integration updates:

    - Updated the JUCE and Pure Data files and the OpenFrameworks example.
    - Added GitHub Actions CI/CD workflows for cross-platform testing.
    - macOS: Replaced version-specific Homebrew dependency paths with stable
    opt/
    symlinks, allowing builds against different installed dependency versions.
    Verified on Python 3.14 (macOS arm64).

    Bug Fixes:

    - Fixed pyo embedding in Pure Data on Windows, including Python runtime discovery,
    full-width pointer handling, and initialization error reporting. Linux and
    macOS embedding were also validated.
    - Fixed GCC 15/C23 incompatibilities (issues #276, #295, and #311).
    - Fixed memory leaks in PyObject_Call and PyObject_CallMethod statements.
    - Improved error handling during object creation.
    - Server: Stream IDs are no longer reused after shutdown.
    - Removed shadowed duplicate method definitions in PeakAmp, RMS, and Server.


    Olivier Belanger
    [email protected]
    http://olivier.ajaxsoundstudio.com/

    ----

    <P><A HREF="https://github.com/belangeo/pyo">Pyo 1.1.0</A> - short
    Python DSP library. (09-Oct-26)
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