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Changelog

For details and minor changes, please see the version control log messages.

1.5.8 (2023-11-20)

Fixes:

  • Changed CI build configuration, so that auditwheel no longer puts a copy of libasound in the Linux binary wheels - overriding the system libasound - which prevented the _rtmidi extension module shared library from being loaded on systems, where the ALSA plugin library path is not /usr/lib64/alsa-lib, specifically on Debian-based distros. (#190)
  • Replace pip with python -m pip everywhere in in the installation documentation and fixed some minor typos .

Changes:

  • Removed obsolete Python 2 compatibility code in the _rtmidi module and references to Python 2 unicode type in its docstrings.

1.5.7 (2023-10-24)

Project infrastructure:

  • Enabled CI builds for Python 3.12 (#182).
    • Updated cibuildwheel version used by CI to 2.16.
    • Added Python 3.12 to meta-data classifiers in pyproject.toml.
    • Added Python 3.12 to tox.ini, removed Python 3.7.
    • Only use custom meson install script to byte-compile installed Python modules if meson version <= 1.2.0.
    • Updated latest Python version mentioned in windows install docs.
  • Updated requirements-dev.txt with pip-compile (#183).

Fixes:

  • Fixed linting errors in send_all.py example (#184).

  • Fixed (no)gil/except declarations on MIDI in callback and MidiOut.sendMessage (#185).

    The GIL is acquired in any case for MIDI in callback and C++ sendMessage call, since Cython needs to check for exceptions.

    Suppress related Cython compilation performance hints.

    Also remove wrong statement about the GIL being released in docstring for send_message.

  • Fixed errors and check for empty message correctly when passing an iter- or generator instead of a sequence to MidiOut.send_message (#186, #188).

1.5.6 (2023-09-12)

Fixes:

  • Fixed building with meson-python >= 0.14.0 (#177).

1.5.5 (2023-07-26)

Fixes:

  • Fixed Cython compilation errors and warnings (#174).

Project infrastructure:

  • Updated requirements-dev.txt with pip-compile (#173).
  • Updated minimum Python version declared in pyproject.toml to 3.8.

Documentation:

  • Updated minimum Python version (3.8) stated in readme and docstring.

1.5.4 (2023-06-27)

Changes:

  • Added send_all.py script to examples (#167).

Project infrastructure:

  • Fixed macOS arm64 binary wheels built by CI without CoreMIDI support (#169).

1.5.3 (2023-06-23)

Changes:

  • Updated rtmidi submodule (#156).

Documentation:

  • Updated installation documentation (#165).
  • Updated contributing guide (#165).
  • Removed Python 3.7 from meta-data classifiers in pyproject.toml(dfb3800).

Project infrastructure:

  • Changed the build back-end to meson-python (#161).
  • Fixed broken macOS arm64 binary wheels built by CI (#161).
  • Fixed missing JACK backend API support in Linux aarch64 binary wheels built by CI (#161).
  • Improved tests for binary wheels built by CI (#162).
  • Cleaned up GitHub actions workflow definitions (#163).
  • Fixed test coverage report target in Makefile (#164).

1.5.2 (2023-06-14)

Changes:

  • Updated rtmidi submodule (#156).

Project infrastructure:

  • Updated requirements-dev.txt with pip-compile (#153).
  • Changed CI to build separate wheels for both macOS architectures (18bbc74, 20f5cdd).
  • Improved build dependency selection in meson config (#156).

1.5.1 (2023-06-12)

Project infrastructure:

  • Fixed broken windows binary wheels built by CI.

1.5.0 (2023-05-23)

Fixes:

  • Fixed memleak in midiutils.list_{in,out}put_ports function (#103).
  • Fixed compilation with PyPy3.

Documentation:

  • Clarified return types in docstrings.
  • Converted readme, changelog, authors, and install docs to Markdown.

Examples:

  • Fixed basic/panic.py to actually use channel number loop var.

Project infrastructure:

  • Modernized project structure and build system (now used meson and mesonpep517) (#119).
  • Added working cibuildwheel github action (#121).
  • Removed redundant Github action (#140).

1.4.9 (2021-04-26)

Fixes:

  • Fixed Windows build for 64-bit Python 3.9 on AppVeyor CI.

Changes:

  • The SysEx reception buffer size for the Windows MM backend was changed from 8096 to 8196.
  • Synced with upstream RtMidi (3dc525baf3cac345cdd3511316571c20b47f30b5, fixes #89).

1.4.8 (2021-04-26)

Fixes:

  • Fixed Windows builds on AppVeyor CI.
  • Fixed command line parsing in midiclock.py example script.

Changes:

  • Release GIL in MidiOut.send_message so that on backend APIs where this operation is blocking (WINDOWS_MM), multiple Python threads using this method on different MidiOut instances can run concurently.

1.4.7 (2021-01-27)

Fixes:

  • Fixed compiler deprecation warning about PyEval_InitThreads on Python 3.9+.

Examples:

  • Added send_sysex and send_sysex_file example scripts.

Documentation:

  • Remove references to old project homepage URL and fix readme badges.

1.4.6 (2020-10-15)

Project infrastructure:

  • Declared/documented Python 3.9 support and updated CI.
  • Dropped official support for Python 3.5.
  • Updated Python versions for building macOS binary wheels.

1.4.5 (2020-08-26)

Fixes:

  • Revert to old way of reading version number via exec (see 8d9a8f9 for background info).

1.4.4 (2020-08-26)

Fixes:

  • Fixed setup.py to work with Python 2 again, though it is not officially supported anymore (#70, #72).

1.4.3 (2020-08-11)

Fixes:

  • Fixed error when trying to import version number from rtmidi.release when Python is running with -OO optimization enabled (#69).

Project infrastructure:

  • Moved distribution meta data to setup.cfg, added rtmidi/version.py and removed rtmidi/release.py (#69).

1.4.2 (2020-07-18)

Enhancements:

  • Added more helpful aliases for MIDI events/controllers constants.

Examples:

  • Added ccstore advanced example to show how to remember last seen controller change values (#64).

1.4.1 (2020-04-16)

Changes:

  • Suppress RtMidi warnings to stderr, so that warnings issued in the constructor of the RtMidiIn/Out C++ class instances before the default error handler function can be attached, don't end up in the output.

    The suppression of RtMidi warnings can be disabled at compile time by setting the pre-compiler define __RTMIDI_SUPPRESS_WARNINGS__ via a command line option to setup.py.

    As before, RtMidi warnings are turned into Python a UserWarning as soon as the default error handler is attached, but this can only happen after the RtMidi C++ class has been instantiated (#59).

  • Allow deletion of internal C++ RtMidiIn/Out instance via new delete method of rtmidi.MidiIn and rtmidi.MidiOut instances (but see warning in docstring!). Also added a is_deleted property to both classes (#60).

1.4.0 (2020-01-19)

Changes:

  • Dropped nominal Python 2 support (no code changes or removals related to this, though).
  • Dropped Python 3.4 support.
  • Added Python 3.8 to setup.py classifier.

Enhancements:

  • Added MODULATION as an alias for MODULATION_WHEEL to rtmidi.midiconstants.

Examples:

  • Added midiclock example to show how to receive MIDI timing clock (#48).
  • Changed midioutwrapper example to use rtmidi.midiutil.open_midiout so that it also works on Windows (with no virtual ports support) (#51).

Documentation:

  • Added note about pip being called pip3 on Debian-based systems to install instructions (#49).
  • Documented context manager protocol support better (#52).
  • Clarified purpose of data argument of MidiIn.set_callback (#55).
  • Updated year in copyright info in license file and Sphinx documentation.

Project infrastructure:

  • Removed Python 2.7 from CI tests and package builds.
  • Added Python 3.8 to CI and package builds.

1.3.1 (2019-10-15)

Enhancements / Changes:

  • RtMidi C++ exceptions are now caught when creating RtMidiIn/Out instances and converted into a Python rtmidi.SystemError exception.
  • Helper functions in rtmidi.midiutil now raise sub-classes of rtmidi.RtMidiError wherever appropriate. The docstrings were updated accordingly.
  • Updated rtmidi sub-module, which includes the following changes:
    • C++ exceptions, when thrown, do not print the error message to stderr anymore.
    • When the JACK backend can't be initialized (e.g. when the server isn't running) it causes a DRIVER_ERROR instead of just a printing a WARNING.

Examples:

  • midiout.py: removed surplus second argument to open_midioutput left over from previous version of script.
  • Renamed example script midiwrapper.py to midioutwrapper.py to better indicate its function.
  • sendsysex.py: use helper functions from midiutil module to list and open MIDI ports; improve error handling.
  • Made sure MIDI ports are always properly closed and MidiIn/Out instances are deleted.
  • Inserted delay before closing/deleting output (may be needed with Windows MMS).
  • Simplified command line argument handling.
  • Fixed example script file names in header comments.

Documentation:

  • Made various small documentation wording changes and typo fixes.
  • Updated year in copyright info in license file and Sphinx documentation.

Project infrastructure:

  • Updated development dependency on urllib3 to 1.24.2 (CVE-2019-11324).

1.3.0 (2019-04-15)

Enhancements / Changes:

  • Added get_api_display_name module-level function.
  • Added get_api_name module-level function.
  • Added get_compiled_api_by_name module-level function.
  • Updated rtmidi sub-module to include all changes from upstream up to commit 791dfea.

Documentation:

  • Improved installation instructions and listed options recognized by setup.py.

1.2.1 (2019-01-18)

Fixes:

  • Fixed build when compiling with JACK support, but JACK version is too old to have jack_port_rename function (#40).

Project infrastructure:

  • Added Linux builds for Python 2.7 and 3.4 - 3.7 to Travis CI setup.

1.2.0 (2019-01-13)

Project infrastructure:

  • RtMidi Sources and header are now included as a git sub-module from the 'python-rtmidi' branch of a fork of the upstream RtMidi repository. This fork incorporates changes and fixes by pull requests to the upstream repository, which are (yet) unmerged, and some changes specific to python-rtmidi.

Enhancements / Changes:

  • Added get_rtmidi_version module-level function.
  • Added set_client_name and set_port_name methods to MidiIn's and MidiOut's base class.
  • Added a bunch of new custom exceptions, all derived from RtMidiError.
  • A default error handler callback is now set for MidiIn andMidiOut instances, which maps C++ level errors into custom Python exceptions.

Examples:

  • Enhanced example script midiwrapper.py with methods for more MIDI messages, including sending all kinds of controller change and of (N)RPN messages.

Fixes:

  • Fixed SysEx message reception in JACK backend in RtMidi: messages broken up over several events are now collected into a single event before being passed to the input callback or returned by MidiIn.get_message.
  • Fixed missing MIDI message input filtering in JACK backend in RtMidi: MidiIn.ignoreTypes now works as intended.

Testing:

  • Restructured tests in test_rtmidi and added tests for new methods.

1.1.2 (2018-10-10)

Project infrastructure:

  • Added bagdes and link to documentation to README visible on GitHub page.
  • Tweaked project description wording.
  • Updated copyright year in various documentation files.

Building:

  • Binary wheels for Windows and OS X for Python 2.7, 3.5 (only Windows), 3.6, and 3.7 are automatically built on AppVeyor resp. Travis CI and uploaded to PyPI when a new release tag is pushed to GitHub.

    Thanks to Benoit Pierre for the PR (#36).

  • Upload Gzip'ed instead Bzip'ed tarballs for source distributions to PyPI.

  • python setup.py test now runs tox, so tests_require in setup.py is empty now. We want dependencies to be only handled by pip, never by setuptools.

Documentation:

  • Minor additions, updates, fixes and wording tweaks.

1.1.1 (2018-08-06)

Building:

  • Rebuild src/_rtmidi.cpp with current Cython for Python 3.7 compatibility.
  • Remove testing with Python 3.3 environment from tox.ini and add Python 3.6 and 3.7.
  • Update dev requirements for Python 3.7 compatibility.
  • Upload releases with twine.

Documentation:

  • Python 3.3 is not officially tested or supported anymore.

1.1.0 (2017-04-21)

Project infrastructure:

  • Updated project homepage URL; copyright year and link to docs in readme.

Building:

  • Added script to automate updating github pages docs.

Enhancements / Changes:

  • Synced with upstream RtMidi (2.1.1-907a94c).
  • Applied patch from thestk/rtmidi#89. This means that when using the ALSA API port names are reported in the form <client name>:<port name> <port id> (this change was actually already in version 1.0.0).
  • Added new MidiIn / MidiOut method is_port_open.
  • MidiIn / MidiOut constructors and open_port / open_virtual_port methods now raise TypeError when an invalid type is passed as the client resp. port name.

Documentation:

  • Various small documentation improvements.

Examples:

  • Basic examples: some clean-up, more comments, updated API usage.
  • Added new advanced example script midiwrapper.py.
  • Added new advanced example script recvrpn.py.
  • wavetablemodstep.py: added command line param to set controller number.
  • midi2command: Fixed wrong mock lru_cache substitution for Python < 3.2.

1.0.0 (2016-11-07)

Project infrastructure:

  • Added automatic documentation publishing on readthedocs.org.

Documentation:

  • Added auto docs for MidiIn/MidiOut classes to sphinx docs.
  • Removed pre-release related information from installation docs.

Building:

  • Added generated INSTALL.rst to repo to make ReadTheDocs integration work.

Examples:

  • Added new example script panic.py.

1.0.0rc1 (2016-10-09)

Project infrastructure:

  • Moved repository to Github.

Fixes:

  • midiutil.open_midiport:
    • Correctly report and log I/O direction and instance type.
    • Fix naming of virtual port.

Enhancements / Changes:

  • Synced with upstream RtMidi (2.1.1-399a8ee).
  • midiutil:
    • The function midiutil.open_port has been renamed to open_midiport.
    • Added convenience functions open_midiinput and open_midioutput, which wrap open_midiport.
    • RtMidi API to use can be specified via the RTMIDI_API environment variable. Only used when API_UNSPECIFIED is passed for the api argument. Value should be one of the API_* constant names with out the API_ prefix, e.g. UNIX_JACK for the Jack API.
  • Cython wrapper class hierarchy restructured to better match the underlying C++ classes and remove code duplication.
  • Some source code re-ordering was done.

Documentation:

  • Added basic structure and initial content of Sphinx documentation.
  • Documented exceptions raised by MidiIn/Out.open_[virtual_]port().
  • Some docstring corrections and formatting fixes.

Building:

  • Simplified setup.py by throwing out old compatibility stuff.
  • Explicitly call PyEval_InitThreads from Cython code instead of using undocumented compiler macro.

Examples:

  • Moved osc2midi example into its own repository.
  • Add new sequencer example.
  • Add new noteon2osc example.
  • midifilter:
    • Moved main.py to __main__.py, removed old code and fixed command line args access.
    • Streamlined event matching.
    • Added CCToBankChange filter.
    • Queue module renamed to queue in Python 3.
    • Fixed opening of output port erroneously used "input".
    • Fixed positional command line args handling.
    • Set command name for argparse.
  • midi2command:
    • Added README.
    • Added command line option to select backend API.
    • Catch errors when opening port.
    • Set client and port name.
    • Cache command lookup (Python 3.2+ only).
  • sysexsaver:
    • Moved main.py to __main__.py, some refactoring.
    • models.py: Fixed wrong entry for manufacturer (0, 32, 81).
    • Moved module level code into main function.
    • Include model name in output file, if possible.
  • drumseq:
    • Fixed global access in Sequencer class.
    • Use args.FileType for pattern command line args.

0.5b1 (2014-06-11)

Fixes:

  • Synced RtMidi code with git repo @ 2c7a6664d6, which fixed several issues (see https://github.com/thestk/rtmidi/issues?state=closed).
  • MidiIn/Out.open_virtual_port returns self for context manager support, consistent with MidiIn/Out.open_port.
  • Fix Python <= 2.6 incompatible encode method call (python-rtmidi officially only supports Python >= 2.7). Thanks to Michiel Overtoom for reporting this.
  • Respect passed MIDI api when requesting MidiOut instance from midiutil.open_midiport.

Enhancements / Changes:

  • Support for Windows Kernel Streaming API was removed in RtMidi (it was broken anyway) and consequently in python-rtmidi as well.
  • Raise RtMidiError exception when trying to open a (virtual) port on a MidiIn/Out instance that already has an open (virtual) port.
  • Add some common synonyms for MIDI events and controllers and some source comments about controller usage to midiconstants module.

Documentation:

  • Fix and clarify queue_size_limit default value in docstrings
  • Various docstring consistency improvements and minor fixes.

Examples:

  • New example script midi2command.py, which executes external commands on reception of configurable MIDI events, with example configuration.
  • New example directory drumseq with a simple drum pattern sequencer and example drum patterns. Thanks to Michiel Overtoom for the original script!

0.4.3b1 (2013-11-10)

Building:

  • Add numeric suffix to version number to comply with PEP 440.
  • Add missing fill_template.py to source distribution.
  • Set default setuptools version in ez_setup.py to 1.3.2, which contains fix for bug #99 mentioned below.

Documentation:

  • Add note to installation guide about required --pre option with pip.

0.4.2b (2013-11-07)

Fixes:

  • Add missing API_* constant to list of exported names of _rtmidi module.

Enhancements / Changes:

  • Change default value of encoding argument of get_ports and get_port_name methods to ["auto"]{.title-ref}, which selects appropriate encoding based on system and backend API used.
  • Add api parameter to midiutil.open_midiport function to select backend API.
  • Make client name for MidiOut and MidiIn different again, because some backend APIs might require unique client names.

Building:

  • Include workaround for setuptools bug (see bitbucket issue #99) in setup file.
  • Add custom distutils command to fill placeholders in INSTALL.rst.in template with release meta data.
  • Setuptools is now required, pure distutils won't work anymore, so removing the fallback import of setup from distutils.

0.4.1b (2013-11-05)

Building:

  • Include missing _rtmidi.cpp file in source distribution.

Documentation:

  • Fill in release data placeholders in INSTALL.rst.

0.4b (2013-11-05 )

Fixes:

  • Fix string conversion in constructors and open_* methods.
  • Change default value queue_size_limit argument to MidiIn constructor to 1024.
  • Update version number in RtMidi.cpp/h to reflect actual code state.

Enhancements / Changes:

  • Elevated development status to beta.
  • Allow MidiIn/Out.open_port methods to be used with the with statement and the port will be closed at the end of the block.
  • MidiIn/MidiOut and open*() methods: allow to specify None as client or port name to get the default names.
  • Move midiconstants module from examples into rtmidi package and added midiutil module.
  • midiutils.open_midiport:
    • Allow to pass (substring of) port name as alternative to port number.
    • Re-raise EOFError and KeyboardInterrupt instead of using sys.exit().
    • Add client_name and port_name arguments.
    • Add use_virtual argument (default False) to request opening of a virtual MIDI port.
    • Add interactive keyword argument (default True) to disable interactive prompt for port.
  • Raise NotImplemented error when trying to open a virtual port with Windows MultiMedia API.
  • Change default name of virtual ports.

Documentation:

  • Re-organize package description and installation instructions into several files and add separate text files with changelog and license information.
  • Add detailed instructions for compiling from source on Windows
  • Add docstrings to all methods and functions in _rtmidi module.
  • Add docstring for midiutils.open_midiport function.

Examples:

  • Add new example package osc2midi, a simple, uni-directional OSC to MIDI mapper.
  • New example script sendsysex.py to demonstrate sending of MIDI system exclusive messages.
  • New example script wavetablemodstep.py to demonstrate sending of MIDI control change messages.
  • New sysexsaver example.
  • Convert midifilter example script into a package.
  • Upgrade from optparse to argparse in example scripts.
  • Enable logging in test scripts.

Building:

  • Switch from distribute back to setuptools.
  • Include ez_setup.py in source distribution.
  • Include examples in source distribution.
  • Install osc2midi example as package and command line script.
  • Enable C++ exceptions on Windows build.

0.3.1a (2013-01-23)

Enhancements:

  • Increase sysex input buffer size for WinMM API again to 8192 (8k) bytes. Requested by Martin Tarenskeen.

0.3a (2013-01-14)

Bug fixes:

  • Add encoding parameter to get_port_name methods of MidiIn and MidiOut to be able to handle non-UTF-8 port names, e.g. on Windows (reported by Pierre Castellotti).
  • Add encoding parameter to get_ports method as well and pass it through to get_port_name. Use it in the test scripts.

Enhancements:

  • Increase sysex input buffer size for WinMM API to 4096 bytes.

Examples:

  • Add new midifilter.py example script.

Building:

  • Add setuptools/distribute support.

0.2a (2012-07-22)

Bug fixes:

  • Fix uninitialized pointer bug in RtMidi.cpp in 'MidiOutJack' class, which caused a warning in the jack process callback when creating a MidiOut instance with the JACK API.
  • testmidiin_*.py: fix superfluous decoding of port name (caused error with Python 3).

Enhancements:

  • Simplify some code, some things gleaned from rtmidi_python.
  • Documentation typo fixes and more information on Windows compilation.
  • Enhancements in test scripts:
    • test_probe_ports.py: Catch exceptions when creating port.
    • test_midiin_*.py:
      • Better error message for missing/invalid port number.
      • Show how to convert event delta time into absolute time when receiving input.

Building:

  • Building on OS X 10.6.9 with CoreMIDI and JACK for OS X successfully tested and test run without errors.
  • WinMM support now compiles with Visual Studio 2008 Express and tests work under Windows XP SP3 32-bit.
  • Add command line option to exclude WinMM or WinKS API from compilation.
  • Add missing extra_compile_args to Extension kwargs in setup file.
  • Add library_dirs to Extension kwargs in setup file.
  • Use -frtti compiler option on OS X (neccessary on 10.7?).
  • Fix file name conflict on case-insensitive file systems by prefixing rtmidi.{pyx,cpp} with an underscore
  • Provide correct compiler flags for compiling with Windows MultiMedia API.
  • Adapt windows library and include path for Visual Studio 2008 Express.
  • add support for compiling with Windows Kernel Streaming API (does not not compile due to syntax errors in RtMidi.cpp yet).

0.1a (2012-07-13)

First public release.