I suggest installing openbabel through anaconda which solved a similar issue 
for me. For that, you will need two steps:

1) Install anaconda: google how to do this. The installation is designed to be 
simple, so users with less experience with Linux can use it.
2) after installation of anaconda, type “conda install -c openbabel openbabel” 
in your terminal. You could also google the second step.

After this you will have obabel working both with terminal and python. 

I did this last year and everything went through smoothly. I hope it works for 
you too.

-Tayeb

Tayeb Kakeshpour
Graduate Research Assistant
Jackson Research Group
Michigan State University
Department of Chemistry
578 S. Shaw Lane, room 535
East Lansing, MI 48824
kakes...@msu.edu



> On Jan 8, 2019, at 10:49 AM, Ruben Kuiper <ruben.kui...@hotmail.com> wrote:
> 
> Hi there,
> 
> I'm trying to install Open Babel 2.4.1 on Fedora 29 and then access it 
> through Python 2.7.15, but when I try to I receive the following error 
> message: ImportError: No module named openbabel.
> I'm pretty sure I did not receive any error messages during the installation, 
> so I'm wondering where it went wrong.
> These are the commands I ran in order to install Open Babel, after 
> downloading and extracting Eigen 3.3.7 and downloading openbabel-2.4.1.tar.gz:
> 
> $ tar zxf openbabel-2.4.1.tar.gz
> $ mkdir build
> $ cd build
> $ cmake ../openbabel-2.4.1 
> -DEIGEN3_INCLUDE_DIR=/home/my_name/Downloads/eigen-eigen-323c052e1731 
> -DEIGEN3_VERSION_OK=ON -DPYTHON_BINDINGS=ON 
> -DPYTHON_INCLUDE_DIR=/usr/include/python2.7 
> -DPYTHON_LIBRARY=/usr/lib64/python2.7/config/libpython2.7.so
> $ make
> $ sudo make install
> $ export PYTHONPATH=/usr/local/lib:$PYTHONPATH
> 
> After that I opened Python in Terminal and received the aforementioned error 
> message by entering "import openbabel".
> Any ideas on how I might fix this problem?
> 
> Thanks in advance,
> 
> Ruben.
> 
> PS: I'm not very experienced with Linux or programming, so please keep that 
> in mind when trying to explain something.
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> OpenBabel-discuss@lists.sourceforge.net
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