Re: [Generateds-discuss] gds_validate_simple_patterns and MusicXml

[Dave K. <dku...@da...>]

Rick,

Thanks again for the report.

I believe I've fixed this now.
We'll now generate an additional line of code to convert the
Python `datetime`, `date`, or `time` object to string before
doing the regular expression match for validation.

I've uploaded this patched version to PyPI and SourceForge.  If you
get a chance to try it, please let me know whether ti fixes the
issue for you.

Dave


On Mon 09 Aug 2021 08:03:39 AM PDT, Taube, Heinrich K wrote:

> Hi, I am prepping to teach a cs+music class in the fall and Ive used  
> generateDS to convert the MusicXml schema  
> (https://www.musicxml.com/for-developers/musicxml-xsd/) into a  
> generateDS python file. Thank you for such an awesome program!!  Ive  
> been trying it out on some musicxml scores, and I've found one  
> problem so far.  If a musicxml file contains an element like this:
>       <encoding-date>2021-08-09</encoding-date>
>
> then parsing fails in gds_validate_simple_patterns() with the message
>
>  TypeError: expected string or bytes-like object
>
> Here’s a partial stack trace:
>   […]
>   File "/Users/taube/Software/musx/musx/mxml/musicxml.py", line  
> 31792, in _buildChildren
>     self.validate_yyyy_mm_dd(self.encoding_date[-1])
>   File "/Users/taube/Software/musx/musx/mxml/musicxml.py", line  
> 31707, in validate_yyyy_mm_dd
>     if not self.gds_validate_simple_patterns(
>   File "/Users/taube/Software/musx/musx/mxml/musicxml.py", line 507,  
> in gds_validate_simple_patterns
>     mo = re_.search(patterns2, target)
>   File  
> "/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/re.py",  
> line 201, in search
>     return _compile(pattern, flags).search(string)
> TypeError: expected string or bytes-like object
>
> If I delete that one line from the musicxml file, then the file is  
> parsed successfully.  I’m wondering if you have any suggestions on  
> what I can do to stop the exception?
> Ive tried putting a few print statements in the musicxml.py file to  
> try to look more closely at what is happening but for some reason I  
> cant get the print statements to show up in my terminal. Im not sure  
> why that is yet (the musicxml.py file is 3.1 megabytes and maybe  
> that has something to do with it…)  The only other issue I could  
> point at is that when i create the musicxml.py file like this
>
> $ generateDS -o musicxml.py --root-element "score_partwise"  
> schema/musicxml.xsd
>
> I get many many of messages like this:
>
> *** No suitable ns prefix for element "<XschemaElement name:  
> "key-accidental" type: "key-accidental">”.
>
> and a handful with these warnings:
>
> *** warning.  Removing child with duplicate name: “tie"
> *** warning.  child chord already removed
>
> However, despite the warnings it seems like the code is actually  
> parsing xml Elements correctly so I’ve not looked into this any more.
>
>
> If you have pointers on what I might be able to do with   
> gds_validate_simple_patterns it would be greatly appreciated!
>
>
> Rick Taube
> ________________________________
> Chair, Composition/Theory
> School of Music
> University of Illinois Urbana-Champaign
> Email: ta...@il...<mailto:ta...@il...>
> President, Illiac Software Inc.
> https://harmonia.illiacsoftware.com/
> Email: ta...@il...



-- 
Dave Kuhlman
http://www.davekuhlman.org