Installation via pip fails on OS X 10.11

[angusturner]

I am getting the following error message when I try to install rtmidi via pip. I have tried python 3.5 and 3.6, as well as rtmidi version 2.0, 2.1 and 2.2.

  Running setup.py clean for rtmidi
Failed to build rtmidi
Installing collected packages: rtmidi
  Running setup.py install for rtmidi ... error
    Complete output from command /Users/angusturner/anaconda2/envs/py3k/bin/python -u -c "import setuptools, tokenize;__file__='/private/tmp/pip-build-36rcilh3/rtmidi/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-7651oity-record/install-record.txt --single-version-externally-managed --compile:
    /Users/angusturner/anaconda2/envs/py3k/lib/python3.6/distutils/extension.py:131: UserWarning: Unknown Extension options: 'author', 'author_email', 'classifiers', 'description', 'keywords', 'url'
      warnings.warn(msg)
    running install
    running build
    running build_py
    creating build
    creating build/lib.macosx-10.7-x86_64-3.6
    creating build/lib.macosx-10.7-x86_64-3.6/rtmidi
    copying rtmidi/__init__.py -> build/lib.macosx-10.7-x86_64-3.6/rtmidi
    copying rtmidi/collector.py -> build/lib.macosx-10.7-x86_64-3.6/rtmidi
    copying rtmidi/randomout.py -> build/lib.macosx-10.7-x86_64-3.6/rtmidi
    running build_ext
    building 'rtmidi._rtmidi' extension
    creating build/temp.macosx-10.7-x86_64-3.6
    gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/angusturner/anaconda2/envs/py3k/include -arch x86_64 -I/Users/angusturner/anaconda2/envs/py3k/include -arch x86_64 -D__MACOSX_CORE__= -I/Users/angusturner/anaconda2/envs/py3k/include/python3.6m -c RtMidi.cpp -o build/temp.macosx-10.7-x86_64-3.6/RtMidi.o
    RtMidi.cpp:235:17: error: out-of-line definition of 'setErrorCallback' does not match any declaration in 'MidiApi'
    void MidiApi :: setErrorCallback( RtMidiErrorCallback errorCallback )
                    ^~~~~~~~~~~~~~~~
    RtMidi.cpp:251:40: error: too few arguments to function call, expected 3, have 2
        errorCallback_( type, errorMessage );
        ~~~~~~~~~~~~~~                     ^
    2 errors generated.
    error: command 'gcc' failed with exit status 1```

[SpotlightKid]

This is not the Python rtmidi project. This is the C++ library RtMidi. You were probably attempting to install https://pypi.python.org/pypi/rtmidi.

[garyscavone]

Issue not applicable.