[yt-users] development environment issue

[Sam Leitner]

On Sun, Dec 23, 2012 at 11:16 PM, Matthew Turk <matthewturk at gmail.com>wrote:

> Hi Sam,
>
> I've had occasion recently also to be adding frontends to be
> auto-discovered.  The way that frontends work is that they are
> self-registering classes.  When the class, in this case
> ARTIOStaticOutput is defined, the metaclass gets called and this
> inserts a reference to the frontend's static output into the known set
> of data types.  You're likely seeing this in your run on the command
> line for plot.
>
> I would also guess that things aren't being activated correctly.  What
> happens if you manually import it in your script, above yt.mods, and
> print it out?  Because printing out a module object will include the
> path, this can help us see where thigns might be going wrong.
>
> import yt.mods; print yt.mods
> import yt.frontends.artio.api as artio; print artio
>
>
Eek, got it. Thanks for the debugging tips (and advice below)! print
yt.mods yielded the wrong repo path... The issue was that I linked my
script between clones. It looks like that link was followed for importing
yt.mods, but the rest of yt was activated in the correct path.

Should have caught that, thanks for all of your help!


> And it may also now be the case that if you manually import it, you
> can load from it.
>
> As a point of reference, one thing I have become accustomed to
> prefixing all the scripts that absolutely need to run in a particular
> clone of yt with something like this at the top of the script:
>
> import sys
> sys.path.insert(0, "/home/mturk/yt/yt-3.0")
>
> Then you can go on to do stuff like:
>
> from yt.mods import *
> from yt.frontends.sph.api import OWLSStaticOutput
> pf = load("snapshot_033/snap_033.0.hdf5")
>
> Can you have a go at looking into where the modules are coming from,
> and let us know?  As another quick idea, it may be that if you want to
> move back and forth, you can avoid using "develop" at all and manually
> set your PYTHONPATH.  I keep all of my yt repos in $HOME/yt and I use
> this alias to switch between them:
>
> ppbr()
> {
>     PP="${HOME}/yt/$1/"
>     if [ ! -d ${PP} ] && echo "${PP} doesn't exist" && return
>     export PYTHONPATH=${PP}
>     #echo "PYTHONPATH=${PYTHONPATH}"
>     export YTPATH=${PP}
> }
>
> It's simple, but it works.
>
> -Matt
>
>
> On Sun, Dec 23, 2012 at 5:04 PM, Sam Leitner <sam.leitner at gmail.com>
> wrote:
> > Hi yt-users,
> >
> > I'm having a little trouble with my script environment (for yt-3.0).
> After
> > installing and then "activating" a new repository (python setup.py
> develop)
> > I altered mods.py to include a new frontend. When I then run e.g., plot
> from
> > the command line, yt.mods imports properly and my _is_valid script runs
> > fine. However, when I run "load" from a script my new StaticOutput class
> > isn't found. I guess this is because I have not activated my yt
> environment
> > properly(?), can anyone tell me what is going wrong?
> >
> > Thanks!
> >
> > Sam
> >
> > PS In case it is helpful: I get an error on load in convenience.py
> because
> > the my new StaticOutput class (artio) is not defined. Here's the output
> if I
> > print the c in c._is_valid .
> >
> > <class 'yt.frontends.enzo.data_structures.EnzoStaticOutput'>
> > <class 'yt.frontends.chombo.data_structures.ChomboStaticOutput'>
> > <class 'yt.data_objects.static_output.StaticOutput'>
> > <class 'yt.frontends.athena.data_structures.AthenaStaticOutput'>
> > <class 'yt.frontends.tiger.data_structures.TigerStaticOutput'>
> > <class 'yt.frontends.nyx.data_structures.NyxStaticOutput'>
> > <class 'yt.frontends.orion.data_structures.OrionStaticOutput'>
> > <class 'yt.frontends.flash.data_structures.FLASHStaticOutput'>
> > <class 'yt.frontends.enzo.data_structures.EnzoStaticOutputInMemory'>
> > <class 'yt.frontends.ramses.data_structures.RAMSESStaticOutput'>
> > <class 'yt.frontends.gdf.data_structures.GDFStaticOutput'>
> > <class 'yt.frontends.castro.data_structures.CastroStaticOutput'>
> > yt : [ERROR    ] 2012-12-23 14:16:08,197 Couldn't figure out output type
> for
> > tests/artdat/sizmbhloz-cl04SNpWRPlc30nPF-rs9_a0.9254.art
> > Traceback (most recent call last):
> >   File "plot.py", line 3, in <module>
> >     pf = load("tests/artdat/sizmbhloz-cl04SNpWRPlc30nPF-rs9_a0.9254.art")
> >   File "/Users/sleitner/repos/yt-3.0-clone/yt/convenience.py", line 85,
> in
> > load
> >     raise YTOutputNotIdentified(args, kwargs)
> >
> >
> >
> > _______________________________________________
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> >
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