Re: [mb-users] Track duration is None

Here's what I came up with:

releases = m.get_releases_by_discid("<discid>", includes=['recordings'])

duration = releases['disc']['release-list'][0]['medium-list'][0]['track-list']
[i]['recording']['length']

where i is the track index.  Also,

ttitle = releases['disc']['release-list'][0]['medium-list'][0]['track-list']
[i]['recording']['title']

It's a far cry from release.tracks[i].duration, but at least I'm not getting 
CDStubs anymore.

BTW, how to a modify the above if I *do* want CDStubs?

On Tuesday, 16 April 2013 14:52:12 Ian McEwen wrote:
> The documentation is not completely good for that, no -- you'll need to
> provide some include parameters; if you look at musicbrainz.VALID_INCLUDES
> further down on that page you'll see the valid things to include for each
> endpoint (in this case, 'discid'). To get recording information, you'll
> want to probably include at least 'media', 'artist-credits', and
> 'recordings').
> 
> python-musicbrainz-ngs is also a pretty small wrapper around the webservice
> itself, so you may want to look at
> https://musicbrainz.org/doc/Development/XML_Web_Service/Version_2 which
> gives a basic overview of the webservice. Specifically,
> https://musicbrainz.org/doc/Development/XML_Web_Service/Version_2#discid is
> the section you'll care about here, of course.
> On Tue, Apr 16, 2013 at 03:37:11PM -0600, Jeffrey Barish wrote:
> > Thanks.  Your reply helps very much.
> > 
> > I am changing my code to use python-musicbrainzngs.  I figured that the
> > change wouldn't be too hard because I am using MB only for simple
> > operations. However, the documentation for musicbrainzngs seems
> > incomplete.  I found get_releases_by_discid -- which looks relevant --
> > but I have not been able to figure out how to get a list of the tracks
> > (release.tracks, previously).
> > 
> > I am looking at the documentation on this page:
> > 
> > https://python-musicbrainz-ngs.readthedocs.org/en/latest/api/#getting-data
> > 
> > Is that the right place to be looking?  Are there any examples other than
> > query.py, collection.py, and releasesearch.py?  All I need to know is how
> > to get information about the recording (artist, title) and the tracks
> > (title, duration).
> > 
> > On Tuesday, 16 April 2013 11:33:51 Ian McEwen wrote:
> > > Okay, so, first of all, python-musicbrainz2 is deprecated, since the
> > > webservice version it uses (/ws/1) is deprecated. So I'd suggest moving
> > > away from that. However:
> > > 
> > > https://musicbrainz.org/ws/1/release/?discid=Uet7Ne0jNNwhz206YC0rPlDJELw
> > > - is the url it constructs initially. You can see the result it found.
> > > 
> > > Issue: that endpoint includes CDStubs[1] by default. As you can see,
> > > https://musicbrainz.org/ws/1/release/?discid=Uet7Ne0jNNwhz206YC0rPlDJELw
> > > -&c
> > > dstubs=no does not include that result. Also, CDStubs don't support many
> > > of
> > > the various ?inc parameters, and they don't have much info.
> > > 
> > > The CDStub is:
> > > https://musicbrainz.org/cdstub/Uet7Ne0jNNwhz206YC0rPlDJELw-
> > > 
> > > I'm not sure why it's not including durations, but I'd bet it's because
> > > it's a CDStub.
> > > 
> > > In general, I'd recommend a.) moving away from python-musicbrainz2 and
> > > /ws/1, b.) if you must, figure out the proper way to exclude CDStubs,
> > > and
> > > c.) sometimes things just don't have durations even after all that. So
> > > you'll just have to account for that somewhere :)
> > > 
> > > Hopefully this helps.
> > > 
> > > [1]: http://wiki.musicbrainz.org/CD_Stub
> > > 
> > > On Tue, Apr 16, 2013 at 11:32:16AM -0600, Jeffrey Barish wrote:
> > > > When I look up the track duration for a particular recording using the
> > > > API
> > > > thusly:
> > > > 
> > > > rel_filter = mbws.ReleaseFilter(discId='Uet7Ne0jNNwhz206YC0rPlDJELw-')
> > > > result = query.getReleases(rel_filter)
> > > > release = result[0].release
> > > > release.tracks[0].title
> > > > u'Adagio \u2013 Allegro molto'
> > > > print release.tracks[0].duration
> > > > 
> > > > I get None.
> > > > 
> > > > I figured that I should check the duration using the web interface,
> > > > but I
> > > > cannot find the recording.  It must be in the database -- right? --
> > > > because I get a result when I search using the API.  Is there a way to
> > > > look up a recording using the disc ID?  How does it happen that the
> > > > duration of the tracks on this recording are all None?  Is this record
> > > > erroneous, or do I have to protect against this value?
> > > > 
> > > > Jeffrey Barish
> > > > 
> > > > _______________________________________________
> > > > MusicBrainz-users mailing list
> > > > [email protected]
> > > > http://lists.musicbrainz.org/mailman/listinfo/musicbrainz-users
> > > 
> > > --
> > > Ian McEwen <[email protected]> <[email protected]>
> > > A262 D5C4 40CB 0E1C 5F24 C3A1 ABED 1ABD 7131 A76F
> > > http://ianmcorvidae.net/
> > 
> > --
> > _______________________________________________
> > MusicBrainz-users mailing list
> > [email protected]
> > http://lists.musicbrainz.org/mailman/listinfo/musicbrainz-users
> 
> --
> Ian McEwen <[email protected]> <[email protected]>
> A262 D5C4 40CB 0E1C 5F24 C3A1 ABED 1ABD 7131 A76F
> http://ianmcorvidae.net/