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IDL Python Bridge [message #92673]

Thu, 04 February 2016 11:47

Phillip Bitzer
Messages: 223
Registered: June 2006

Senior Member

Before I chase the rabbit down the hole, I'm hoping someone else has some experience in getting this to work.

I am unable to get the IDL-Python bridge up and running on a Mac (OS 10.9.5, for completeness). I am using Anaconda and IDL 8.5. Let me check my Python install, as in the Exelis, er Harris, installation directions (https://www.exelisvis.com/docs/python.html and http://www.exelisvis.com/Support/HelpArticlesDetail/TabId/21 9/ArtMID/900/ArticleID/14600/Using-the-IDL-Python-Bridge-on- Mac.aspx):

>>> import sys
>>> sys.version
'2.7.11 |Anaconda 2.4.1 (x86_64)| (default, Dec 6 2015, 18:57:58) \n[GCC 4.2.1 (Apple Inc. build 5577)]'

Before setting any variables, I'll check my python version at the command line too:
$ python --version
Python 2.7.11 :: Anaconda 2.4.1 (x86_64)

and:
$ which python
~/anaconda/bin/python

And for kicks and giggles, try the bridge anyway:

IDL> >>>
>>> import sys
% Loaded DLM: PYTHON27.
ImportError: numpy.core.multiarray failed to import
Segmentation fault: 11

and I get dumped back to the command line.

Not surprising it doesn't work - I didn't follow the installation directions. So, let me set the paths as specified. I working with a bash shell, so I'll be exporting. No big deal. (One caveat, it seems Anaconda has already added itself to my PATH, so no need to do it again.)

Source my bash profile, echo all the paths, and everything seems to be there. So, let's try the bridge again:

IDL> >>>
>>> import sys
% Loaded DLM: PYTHON27.
ImportError: numpy.core.multiarray failed to import
Segmentation fault: 11

and back to the command line. Again.

Hmm. Let's check that version now:
python --version
Python 2.7.5

Er, it seems I've pointed away from the Anaconda python. But,
$ which python
~/anaconda/bin/python

is still the same. Sigh.

I have spend some time digging around, and it seems it has something to with the DYLD environment variable, most likely the /usr/bin part. It seems I'm picking up the python in /usr/bin instead of the Anaconda version.

Clearly, this is a path problem - which I know is a PITA to troubleshoot remotely.

All this ask: does anyone have the bridge up and running on a Mac? If so, are your paths any different? I can't seem to track down why python is now pointing at an older install. This seems to be the issue causing the IDL-Python bridge fits.

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[Message index]

		IDL Python Bridge By: Phillip Bitzer on Thu, 04 February 2016 11:47
		Re: IDL Python Bridge By: Michael Galloy on Thu, 04 February 2016 19:43
		Re: IDL Python Bridge By: lecacheux.alain on Fri, 05 February 2016 00:57
		Re: IDL Python Bridge By: vkashyap on Thu, 16 June 2016 08:20
		Re: IDL Python Bridge By: guygma on Thu, 16 June 2016 12:48
		Re: IDL Python Bridge By: guygma on Tue, 21 June 2016 13:29
		Re: IDL Python Bridge By: ivolabbe on Tue, 10 January 2017 14:43
		Re: IDL Python Bridge By: Jim Pendleton on Tue, 10 January 2017 20:33
		Re: IDL Python Bridge By: ivolabbe on Wed, 11 January 2017 14:34
		Re: IDL Python Bridge By: ivolabbe on Sat, 28 January 2017 16:42
		Re: IDL Python Bridge By: joe.llama on Thu, 02 February 2017 13:14
		Re: IDL Python Bridge By: cwamsley on Mon, 28 August 2017 06:10

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