Re: OSX Lion cannot run lilymidi

[Hans Aberg]

On 26 Oct 2011, at 21:43, Maccesch wrote:

> I have the latest unstable Version (2.15.15-1) installed on
> OS X Lion. The GUI seems to work fine, but if I try to run
> lilymidi from the Terminal I get this error:
> 
> Traceback (most recent call last):
>  File "./lilymidi", line 237, in <module>
>    go ()
>  File "./lilymidi", line 218, in go
>    midi_data = read_midi (midi_file)
>  File "./lilymidi", line 67, in read_midi
>    import midi
> ImportError:
> dlopen(/Applications/LilyPond.app/Contents/Resources/lib/lilypond/
> current/python/midi.so,
> 2): no suitable image found.  Did find:
>       /Applications/LilyPond.app/Contents/Resources/lib/lilypond/
> current/python/midi.so: mach-o, but wrong architecture
> 
> I found a report for this on the web but I haven't found
> a solution.

There are two problems: current python is by default 64-bit, but midi.so is 
32-bit (check in Terminal with 'file'). This can be fixed (see 'man python' - 
tried on Mac OS X 10.6) by in Terminal first doing (in bash)
  export VERSIONER_PYTHON_PREFER_32_BIT=yes
or change the first line in the 
/Applications/LilyPond.app/Contents/Resources/bin/lilymidi script to
  #!/usr/bin/env python2.5
as the default for this python version is 32-bit.

Do that, and I get:
  RuntimeWarning: Python C API version mismatch for module midi: This Python 
has API version 1013, module midi has version 1012.

Since this is a warning, it still works, but ideally, this module should be 
recompiled with a later python version.

Hans