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Re: Error in IDL-Python Bridge [message #91870 is a reply to message #91867]

Tue, 08 September 2015 08:20

chris_torrence@NOSPAM is currently offline

chris_torrence@NOSPAM
Messages: 528
Registered: March 2007

Senior Member

On Monday, September 7, 2015 at 7:17:13 PM UTC-6, Paulo Penteado wrote:
> On Sunday, September 6, 2015 at 9:02:04 PM UTC-3, chu xiangning wrote:
>> plt = Python.Import('matplotlib.pyplot')
>> Error:
>> % PYTHON_IMPORT: Exception: No module named PySide.
>> % Execution halted at: $MAIN$
>>
>> I don't have problems running "ran = Python.Import('numpy.random')".
>> I don't have problem running in ipython "import matplotlib.pyplot".
>>
>
> I have seen this exact problem when using a current Anaconda Python, both with Python 2.7 and 3.4. This seems to happen because PySide was dropped in recent versions of Anaconda:
>
> "Version 2.0 reduces the size of the installers, adds installers for Python 3.4, updates over 40 packages, and moves from PySide to PyQt"
> http://continuum.io/blog/anaconda-2-released
>
> In the case of Anaconda Python 2.7, I can solve it with its installer:
>
> conda install pyside
>
> In the case of Anaconda's Python 3.4, PySide does not seem to be in their repository, so I installed it with pip:
>
> pip install pyside
>
> However, this still does not fix, for me, all the problems with using matplotlib from IDL. What I get next is
>
> IDL> plt = Python.Import('matplotlib.pyplot')
> % Loaded DLM: PYTHON27.
> % PYTHON_IMPORT: Exception: /usr/local/exelis/idl85/bin/bin.linux.x86_64/idl: undefined symbol:
> Py_DecRef.
>
> I still did not have a chance to look further into this.

Hi Paulo,

That sounds like a path issue, either with $PATH or $LD_LIBRARY_PATH. That Py_DecRef is part of the C API for Python, and should be found within the python27.so.

Best of luck!

-Chris

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[Message index]

		Error in IDL-Python Bridge By: chuxiangning on Sun, 06 September 2015 17:02
		Re: Error in IDL-Python Bridge By: penteado on Mon, 07 September 2015 18:17
		Re: Error in IDL-Python Bridge By: chris_torrence@NOSPAM on Tue, 08 September 2015 08:20
		Re: Error in IDL-Python Bridge By: chuxiangning on Tue, 08 September 2015 10:26
		Re: Error in IDL-Python Bridge By: chris_torrence@NOSPAM on Tue, 08 September 2015 12:35
		Re: Error in IDL-Python Bridge By: penteado on Tue, 08 September 2015 17:20
		Re: Error in IDL-Python Bridge By: chris_torrence@NOSPAM on Wed, 09 September 2015 08:05
		Re: Error in IDL-Python Bridge By: penteado on Wed, 23 September 2015 13:44
		Re: Error in IDL-Python Bridge By: biophys on Wed, 16 September 2015 13:38
		Re: Error in IDL-Python Bridge By: Kallisthène on Thu, 17 September 2015 01:04
		Re: Error in IDL-Python Bridge By: biophys on Thu, 17 September 2015 16:44
		Re: Error in IDL-Python Bridge By: chris_torrence@NOSPAM on Mon, 21 September 2015 15:48

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