Re: convert-ly broken in 2.21.x?

[Stanton Sanderson]

> On Aug 7, 2020, at 3:31 PM, David Kastrup <dak@gnu.org> wrote:
> 
> Stanton Sanderson <stansand@gmail.com> writes:
> 
>> I have had no response to my previous post, so I will try again.
>> 
>> On Mac OS 10.14.6 (Mojave), running LilyPond directly from the application 
>> and using Update Syntax” from the “Compile” menu, applying it to the 
>> “Welcome to Lilypond” file after renaming it “test 1.ly”, the following 
>> error message is produced:
>> 
>> ---------
>> Traceback (most recent call last):
>>  File 
>> "/Applications/LilyPond_2.21.4..app/Contents/Resources/bin/convert-ly", line 
>> 86, in <module>
>>    import convertrules
>>  File 
>> "/Applications/LilyPond_2.21.4..app/Contents/Resources/share/lilypond/current/python/convertrules.py",
>>  line 26, in <module>
>>    import lilylib
>>  File 
>> "/Applications/LilyPond_2.21.4..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'
>> ————
>> 
>> I saw the same behavior with 2.21.1 and 2.21.3 when I attempted to update 
>> older files.
>> 
>> What am I missing?
> 
> A recent enough version of Python?  Can you figure out what Python
> version is used by your installation?
> 
> -- 
> David Kastrup

David,

Thanks for responding. The Lilypond 2.21.4 app contains:

Lilypond.app->Contents->Frameworks->Python framework->Versions->2.6

However, the system installed version is later-

MacBook-Air:~ (me)$ python --version
Python 2.7.16
MacBook-Air:~ (me)$ which python
/usr/bin/python

I thought Lilypond.app was “self contained” in the sense of providing the 
necessary binaries. 

Stan