Re: convert-ly on Mac OS

[Stanton Sanderson]

> On Aug 24, 2020, at 12:41 PM, Jonas Hahnfeld <hahnjo@hahnjo.de> wrote:
> 
> Am Montag, den 17.08.2020, 10:44 -0500 schrieb Stan Sanderson:
>> Mac OS 10,14.6, LilyPond 2.21.5-1 (32-bit version, as provided by the 
>> LilyPond web-site)
>> Problem: Selecting “Update Syntax” from the “Compile” menu when the default 
>> test file is loaded returns the following error:
>> 
>> Traceback (most recent call last):
>>  File 
>> "/Users/ssanders/Desktop/LilyPond.app/Contents/Resources/bin/convert-ly", 
>> line 81, in <module>
>>    import convertrules
>>  File 
>> "/Users/ssanders/Desktop/LilyPond.app/Contents/Resources/share/lilypond/current/python/convertrules.py",
>>  line 27, in <module>
>>    import lilylib
>>  File 
>> "/Users/ssanders/Desktop/LilyPond.app/Contents/Resources/share/lilypond/current/python/lilylib.py",
>>  line 30, in <module>
>>    sys.stdin = codecs.getreader('utf8')(sys.stdin.detach())
>> AttributeError: 'file' object has no attribute 'detach'
>> 
>> The Python version shown when App 
>> Contents->Frameworks->Python.framework->Versions are shown is 2.6. 
> 
> Just to be sure: this happens with LilyPad, the graphical application
> that comes with the official installer? If so, that's nothing I could
> easily fix because that comes pre-built IIRC. (Maybe somebody with a
> Mac could build an update?)
> In the mean time, I'd recommend Frescobaldi which hopefully works and
> has many more features for inputting scores with LilyPond 😉
> 
> Jonas

Yes, it happens with the official installed version from the website. As 
mentioned, the Python version installed in the official version appears to be 
2.6, which appears to be the source of the problem. The same behavior as 
described occurs when using Frescobaldi (with the official Mac 32-bit install).

Since posting, I have built and installed lilypond 2.21.5 through MacPorts 
(“lilypond-devel”). The  Python version used is 2.7. I have also built 
Frescobaldi-devel with MacPorts. With this configuration, convert-ly works.

Thanks,
Stan