[yt-users] YT from 2.1 to 2.2

[Casey W. Stark]

Hi Junhwan.

This looks like a python version issue. I believe argparse was added to the
stdlib in Python 2.7, otherwise you must install it manually.

You could try pip install argparse in your current yt environment but there
might be other things in yt that depend on Python 2.7. It might be easier to
create a new yt environment with the install script and run on Python 2.7. I
would try to use Python 2.7 either way, but I don't know of a clean way to
upgrade python in your current yt environment. I hope that helps.

Best,
Casey


On Wed, Jul 20, 2011 at 4:04 PM, Jun-Hwan Choi <jhchoi at pa.uky.edu> wrote:

> Hi YT user,
>
> I recently move the stable 2.1 to development 2.2.
> Then I try to run simple slice script that worked with 2.1, but it crash
> My simple script is as follow:
>
> ------------------------------**-------
> from yt.mods import *
> from yt.analysis_modules.api import EnzoSimulation
> import matplotlib.pylab as pylab
>
> pf = load("DD0000/DD0000")
>
> # create density slices
> pc = PlotCollection(pf, center=[0.5,0.5,0.5])
>
> pc.add_slice("Density", 0)
> pc.save("DD0000")
> ------------------------------**--------
> and the error message is
>
> Traceback (most recent call last):
>  File "SliceDenItr.py", line 1, in <module>
>   from yt.mods import *
>  File "/home/jhchoi/common/lib/**python2.6/site-packages/yt-2.**
> 2dev-py2.6-linux-x86_64.egg/**yt/mods.py", line 43, in <module>
>   from yt.utilities.cookbook import Intent
>  File "/home/jhchoi/common/lib/**python2.6/site-packages/yt-2.**
> 2dev-py2.6-linux-x86_64.egg/**yt/utilities/cookbook.py", line 30, in
> <module>
>   import argparse
> ImportError: No module named argparse
>
> Does anyone know the reason of error and way to fix it?
>
> Thanks in advance,
> Junhwan Choi
>
> --
>
> ------------------------------**------------------------------**--
> Jun-Hwan Choi, Ph.D.
> Department of Physics and Astronomy, University of Kentucky
> Tel: (859) 897-6737        Fax: (859) 323-2846
> Email: jhchoi at pa.uky.edu   URL: http://www.pa.uky.edu/~jhchoi
> ------------------------------**------------------------------**--
>
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