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I installed rtmidi_python for Python 3.4.2 from the .whl provided on http://www.lfd.uci.edu/~gohlke/pythonlibs/, and the import works fine, but as soon as I call "rtmidi_python.MidiIn()", I get a TypeError as follows:

Python 3.4.2 (v3.4.2:ab2c023a9432, Oct  6 2014, 22:15:05) [MSC v.1600 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> import rtmidi_python
>>> rtmidi_python.MidiIn()
Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    rtmidi_python.MidiIn()
  File "rtmidi_python.pyx", line 72, in rtmidi_python.MidiIn.__cinit__ (rtmidi_python.cpp:1440)
TypeError: expected bytes, str found

As I understand, after some research, this means that the there's a mistake somewhere in the package itself or in the build of it, and there's nothing I can do about it, but I might be wrong. Can anyone confirm?

I use 3.4.2 because that is the version of Python used by the current version of Blender. I want to use rtmidi-python within the Blender Game Engine. I am currently working on Windows 7 32 bit, and use .whls to install packages as I do not have the necessary C++ compiler for regular pip installs.

For comparison, I previously installed rtmidi-python for 3.5.1, also from the adequate .whl provided on the link above, and there the command worked perfectly fine.

Should any necessary information be missing, feel free to ask. Thanks ahead if the answer comes as a comment and I don't get to upvote it.

Nel Norgate
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1 Answers1

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While not a perfect solution, this can be fixed in the manner described by sehqlr here...https://github.com/superquadratic/rtmidi-python/issues/17

...by calling MidiIn() like this:

>>> rtmidi_python.MidiIn(b'in')
Nel Norgate
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