[yt-users] problems loading yt

[Matthew Turk]

Hi Brian,

It's how yt tracks the last 500 or so parameter files that have been  
loaded. It's not clear to me why in some/most cases it works but in  
others it fails at the turnover point. The point is to be able to  
pickle objects affiliated with a parameter file - data sources, etc -  
and be able to restore them. The __reduce__ operation in  
BaseDataTypes.py and the ParameterFileStore in yt/fido are where this  
happens.

-Matt



On Apr 5, 2010, at 7:13 PM, "Brian O'Shea" <bwoshea at gmail.com> wrote:

> Hi Matt,
>
> That did the trick.  Thank you!
>
> For my edification, what exactly does the file ~/.yt/ 
> parameter_files.csv do?
>
> Thanks!
>
> Brian
>
> On Mon, Apr 5, 2010 at 10:07 PM, Matthew Turk  
> <matthewturk at gmail.com> wrote:
> Hi Brian,
>
> I will investigate WHY this is happening, but to fix it move the  
> ~/.yt/*.csv files out of the way.
>
> -Matt
>
>
>
>
> On Apr 5, 2010, at 7:01 PM, "Brian O'Shea" <bwoshea at gmail.com> wrote:
>
> Dear yt-users,
>
> I'm having a very peculiar problem, and I wonder if any of you have  
> experienced this.  I have been using my desktop machine to make tons  
> of images of some enzo simulations - literally several thousand  
> images at this point - and yt has mysteriously stopped working.  I  
> haven't done anything to python, attempted to upgrade yt, or  
> anything like that... It just started throwing errors about 800  
> images into a script.  It seems that I can get this error by simply  
> typing 'python' and then 'from yt.mods import *'.  The error message  
> is at the end of this email.  If anybody could give me some advice,  
> I'd appreciate it - it seems like it might actually be deeper than  
> simply a yt problem, though.
>
> Thanks!
>
> --Brian
>
>
> nibbler:/Users/bwoshea/Desktop/CondBubbleSims/spitzer_0_1_cool%python
> Python 2.5.4 (r254:67917, Dec 23 2008, 14:57:27)
> [GCC 4.0.1 (Apple Computer, Inc. build 5363)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
> >>> from yt.mods import *
> Traceback (most recent call last):
>  File "<stdin>", line 1, in <module>
>  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/ 
> python2.5/site-packages/yt-2.0dev-py2.5-macosx-10.3-i386.egg/yt/ 
> mods.py", line 32, in <module>
>    import yt.lagos as lagos
>  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/ 
> python2.5/site-packages/yt-2.0dev-py2.5-macosx-10.3-i386.egg/yt/ 
> lagos/__init__.py", line 97, in <module>
>    from OutputTypes import *
>  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/ 
> python2.5/site-packages/yt-2.0dev-py2.5-macosx-10.3-i386.egg/yt/ 
> lagos/OutputTypes.py", line 37, in <module>
>    _pf_store = ParameterFileStore()
>  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/ 
> python2.5/site-packages/yt-2.0dev-py2.5-macosx-10.3-i386.egg/yt/fido/ 
> ParameterFileStorage.py", line 73, in __init__
>    self._records = self.read_db()
>  File "/Library/Frameworks/Python.framework/Versions/2.5/lib/ 
> python2.5/site-packages/yt-2.0dev-py2.5-macosx-10.3-i386.egg/yt/fido/ 
> ParameterFileStorage.py", line 211, in read_db
>    else: v['last_seen'] = float(v['last_seen'])
> ValueError: invalid literal for float(): EnzoStaticOutput
> >>>
>
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