Had to remove chianti.ioneq file about chiantipy HOT 11 CLOSED

from chiantipy.

Python distribution is Anaconda Python 2.7.12.

import os
os.environ["XUVTOP"]="C:\\Users\\shiggins\\Documents\\CHIANTI"
os.environ["HOME"]="C:\\Users\\shiggins\\Documents\\CHIANTI"
import ChiantiPy.core as ch
import numpy as np
t = 10.**(5.8 + 0.05*np.arange(21.))
fe14 = ch.ion('fe_14', temperature=t, eDensity=1.e+9, em=1.e+27)

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "C:\Users\shiggins\AppData\Local\Continuum\Anaconda2\lib\site-packages\chiantipy-0.7.dev506-py2.7.egg\ChiantiPy\core\Ion.py", line 114, in __init__
    self.Defaults = chdata.Defaults
AttributeError: 'module' object has no attribute 'Defaults'

This error occurs with chianti.ioneq present in PaxHeaders.23462 folder. If I remove the file (I just threw it on the Desktop), no errors - all works fine.

from chiantipy.

try:
import ChiantiPy.tools.data as chdata
for akey in chdata.Defaults.keys(): print(akey)

this should give a list of things like:
abundfile
wavelength
flux
ioneqfile
gui
let us know what happens

from chiantipy.

Import succeeds, command returns:
ioneqfile
wavelength
gui
abundfile
flux

That's all, though.

from chiantipy.

It looks like you are able to import the attribute that has the names of various default values
for example
chdata.Defaults['ioneqfile'] should give the the name 'chianti' and this corresponds to the ioneq file chianti.ioneq
you are using ChiantiPy version 0.7.0... which should be OK.
I also do not understand

PaxHeader.23462

has

that got something to do with the Anaconda package?
I am at a bit of a loss here

from chiantipy.

No, it's part of the gzipped Chianti database that you have to download prior to installing ChiantiPy.

From the instructions at http://chiantipy.sourceforge.net/installing.html:

The gzipped data tar ball can be downloaded from the CHIANTI website

• put the file in a convenient directory, cd to the directory and untar the file
• ChiantiPy uses the environment variable XUVTOP to find the database. Set XUVTOP to the name of the directory where the CHIANTI data tarball was placed.

So when you unzip those files, you get a series of folders - mostly element names, and then some metadata. There is a folder ioneq, which contains a file chianti.ioneq. There is also a folder ioneq/PaxHeaders.23462, which also contains a file chianti.ioneq. If I don't remove the second copy, ChiantiPy complains about it on import of ChiantiPy.core ("found more than one ioneq file.") I then get the errors that I reported. If I remove the file from that folder, everything behaves fine. I just wanted to let you know about that.

from chiantipy.

from chiantipy.

No problem, thanks for the response. Good to know about the SourceForge docs.

from chiantipy.

I just downloaded the database from chiantidatabase.org and it did not have the "PaxHeader" things in it. You might want to do a clean install it your have more problems like that.

from chiantipy.

@sahiggin what utility are you using to extract/unzip the CHIANTI tarball?

from chiantipy.

I've downloaded the latest tarball from the CHIANTI webpage and using the command,

$ tar xvzf /path/to/tarball.gz

on Mac OS X v10.11.6 (El Capitan) I do not get any of these PaxHeader files. A bit of googling seems to suggest this is an OS or zip-tool dependent issue:

• PaxHeader folder in prebuilt packages
• #1413 tar file contents reported incorrectly (extra PaxHeaders.### folders)
• includes ././@PaxHeader which confuses older tar versions

I would try a few different zip tools, perhaps playing around with the different command-line options each offers. As you say, one option is obviously just to remove these files manually.

Either way, this seems to not be related to the ChiantiPy code itself so I'm going to go ahead and close this issue. Feel free to continue this thread if you're still having issues with these files and we can try to figure it out.

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