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 Post subject: Problems with library in Ipython.
PostPosted: Sat Apr 04, 2015 6:23 pm 
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Joined: Sat Apr 04, 2015 6:05 pm
Posts: 7
Hi all,
Most likely is a silly question but I am having problems using xalglib.py
My OS is Linux
I am using Python 2.7
I downloaded the alglib-3.9.0.ipython.gpl file and extracted all the files in a folder. Within the ipython folder I can find the xalglib.py and check.py files.
If I run python check.py I get the following error:
Traceback (most recent call last):
File "check.py", line 1, in <module>
import xalglib
File "/alglib_folder/ipython/xalglib.py", line 25, in <module>
import clr
ImportError: No module named clr
I also think that I will have problems with the next import: "import System"
Those libraries do not seem to be available for Ipython...
What am I doing wrong?
Thanks for your help,
Hector


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 Post subject: Re: Problems with library in Ipython.
PostPosted: Mon Apr 06, 2015 8:22 am 
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Joined: Fri May 07, 2010 7:06 am
Posts: 849
Did you used CPython or IPython?


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 Post subject: Re: Problems with library in Ipython.
PostPosted: Mon Apr 06, 2015 8:43 am 
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Joined: Fri May 07, 2010 7:06 am
Posts: 849
Error messages like yous are typical when IPython program is executed from CPython.


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 Post subject: Re: Problems with library in Ipython.
PostPosted: Mon Apr 06, 2015 11:16 am 
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Joined: Sat Apr 04, 2015 6:05 pm
Posts: 7
Hello,
First of all, thank you very much for your replies.
I do not have installed CPython in my system as far as I know.
If I just run in a terminal window "python check.py" then I assume that I am using the Python from the system, that is Python 2.7.9 and I get the aforementioned error.
If I open an Ipython session and I type "import xalglib.py" and hit "enter" then I get the same error.
I have the same problem if I run both files in an Anaconda environment.
In fact, both "clr" and "System" libraries seem to be available in a .NET environment and not in linux by default.
I would really appreciate if you can help me to solve this problem.
Thanks,

Hector


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 Post subject: Re: Problems with library in Ipython.
PostPosted: Mon Apr 06, 2015 11:56 am 
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Joined: Sat Apr 04, 2015 6:05 pm
Posts: 7
Hi again,
Just in case, I have tried to use the alglib-3.9.0.cpython.gpl file that according to the web page "can be used from Python 2.x and 3.x". Once I have extracted its content in a folder, I can find the following "relevant" files:
core (it's a folder)
xalglib.py
setup.py
If I run "python setup.py" i get the following error: "ALGLIB installer: unable to detect ALGLIB shared library".
It is "reasonable" because when it tries to copy the shared libraries from the core directory it looks for the core/alglib.so file and that file is not there. In the core folder there are only ".dll" libraries for a Windows environment. Should I have that alglib.so file there?
Thanks again,
Hector


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 Post subject: Re: Problems with library in Ipython.
PostPosted: Thu Apr 09, 2015 9:59 am 
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Joined: Sat Apr 04, 2015 6:05 pm
Posts: 7
Hi,
Following step by step the instructions in the cpython manual helped to solve most of the issues.
Now I will start using the RBF subpackage.
Thanks,

Hector


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