[yt-svn] [yt_analysis/yt] deceptive errors after a load(NonExistentFile) (issue #475)

[Cameron Hummels]

--- you can reply above this line ---

New issue 475: deceptive errors after a load(NonExistentFile)
https://bitbucket.org/yt_analysis/yt/issue/475/deceptive-errors-after-a-load

Cameron Hummels:

When one loads a non-existent file, yt happily does this with no errors.  However, if one tries to use that pf to then set a metric (or something else, presumably), one gets misleading errors.  Example:

from yt.mods import *
pf = load("nonexistentfile")
W = 200./pf['kpc']

This will bail with the error:
  File "test.py", line 3, in <module>
    W = 200./pf['kpc']
  File "/nics/b/home/chummels/src/yt-x86_64/src/yt-hg/yt/data_objects/time_series.py", line 126, in __ge
titem__
    o = self._pre_outputs[key]
TypeError: list indices must be integers, not str

---

Which can be a bit confusing.  Perhaps when a load occurs, yt can make sure this file exists before accepting it?  If not there, throw a YTFileNoExist exception?


--

This is an issue notification from bitbucket.org. You are receiving
this either because you are the owner of the issue, or you are
following the issue.