It's an old version also. The first thing I would try is the latest version.

On 17 January 2018 at 07:18, Fredrik Wallner <fred...@wallner.nu> wrote:

> (Please cc the list on replies since that makes it a bigger chance that
> you will have a good answer)
>
> Hi,
>
> Well, if installation failed already at the build phase it’s not at all
> strange that you can’t import it from Python...
> As I said earlier, the easiest way of using OpenBabel through Python on a
> Mac is to install the Conda version. If you really want to install it from
> source, you should use a more recent version than 2.3.1.
>
> Kind regards,
> Fredrik
>
> On 16 jan. 2018 21:43 +0100, José Suarez Sierra <
> josemsuarezsie...@gmail.com>, wrote:
>
> Thank you for replying,
>
> Im trying to install it from source with cmake (on mac), but, when I do
> make -j2 I get the following:
>
> build josemanuelsuarezsierra$ make -j2
> [  8%] Built target inchi
> [  9%] Building CXX object src/CMakeFiles/openbabel.dir/base.o
> [  9%] Building CXX object src/CMakeFiles/openbabel.dir/alias.o
> In file included from /Users/josemanuelsuarezsierra/
> openbabel-2.3.1/src/alias.cpp:17:
> In file included from /Users/josemanuelsuarezsierra/
> openbabel-2.3.1/include/openbabel/alias.h:19:
>
> */Users/josemanuelsuarezsierra/openbabel-2.3.1/include/openbabel/shared_ptr.h:25:14:*
>  *fatal
> error: *
> *      'tr1/memory' file not found*
>     #include <tr1/memory>
> *             ^*
> 1 error generated.
> make[2]: *** [src/CMakeFiles/openbabel.dir/alias.o] Error 1
> make[2]: *** Waiting for unfinished jobs....
> make[1]: *** [src/CMakeFiles/openbabel.dir/all] Error 2
> make: *** [all] Error 2
>
> Im using python 2.7 instead of 3 version.
>
> Thank you for your supporting
>
> El 15 ene 2018, a las 11:19, Fredrik Wallner <fred...@wallner.nu>
> escribió:
>
> Hi,
>
> Have you installed OpenBabel and in that case, how did you install it? If
> you are not used to developing/installing from source I would suggest that
> you use the Conda distribution of OpenBabel. Install Anaconda (
> Anaconda.org) and then run “conda install openbabel”.
>
> Kind regards,
> Fredrik
>
> On 15 Jan 2018, 02:26 +0100, Jose manuel Suarez Sierra <
> josemsuarezsie...@gmail.com>, wrote:
>
> Hello,
>
> Im having an error when compiling this example code on my macOS
>
> from pybel import *
> for molecule in readfile("sdf","../xsaa.sdf"):
>     print molecule.molwt
>
> I can not make it to work, it prompts the following issue:
> Library/Python/2.7/lib/python/site-packages/_openbabel.so
>   Reason: image not found
>
> I’ll be so grateful if you can help me.
>
> Sincerely yours jm
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