Re: [Open Babel] How to Install openbabel for Python 3.6 on macOS Sierra 10.12.3

[Geoffrey Hutchison]

> Is there any way that I install it for python 2.7 and then edit some
> environment variable or something to change its binding to Python 3.5???

No, because C and C++ libraries such as Open Babel have to link to the 
appropriate version of libpython.

Noel's question is "why not use Python 3.5" instead of 3.6? Sierra doesn't come 
with Python 3.6, so why did you install that version?

A new release that will be compatible with Python 3.6 will be released - but in 
the meantime, I'm using Python 3.5 just fine on my MacBook.

Best regards,
-Geoff
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Re: [Open Babel] How to Install openbabel for Python 3.6 on macOS Sierra 10.12.3

[i4hashmi]

Hi,

Thanks for the reply. I am using cmake v.3.7.2 on macOS Sierra.
This issue is only with python 3. It compiles fine with default python2.7.
I want to bind it with python3.
Is there any way that I install it for python 2.7 and then edit some
environment variable or something to change its binding to Python 3.5???

Regards
Hashmi



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Re: [Open Babel] How to Install openbabel for Python 3.6 on macOS Sierra 10.12.3

[Maciek Wójcikowski]

Hello,

Python 3.6 support is not there yet. It should be added soon.


Pozdrawiam,  |  Best regards,
Maciek Wójcikowski
mac...@wojcikowski.pl

2017-02-13 5:31 GMT+01:00 i4hashmi :

> I am using Python for making a script to work with some chemical structures
> in my PhD. I want to install openbabel libraries for python. I tried my
> best
> but I could not install it on Windows. I posted a question earlier about
> installing it on Windows at
> http://stackoverflow.com/questions/42151301/how-do-i-
> install-openbabel-for-python-3-6-in-windows-10/42151551?
> noredirect=1#comment71470260_42151551
> but could not find a solution. The solution installed the library but it
> does not work and could not connect to SWIG.
> No I am trying to install it on my office computer which is a mac for past
> 5
> hours but I could not figure what is going on.
> I tried to install it from source code of Openbabel and link it with
> python3
> but it is making problem.
> If I use the following command:
>
>  `cmake ../ -DPYTHON_BINDINGS=ON -DRUN_SWIG=ON`
>
> It successfully links it to Python 2.7 which I do not want. When I try the
> following options, it gives the error shown below:
>
> `cmake ../ -DPYTHON_EXECUTABLE=/usr/bin/python3 -DPYTHON_BINDINGS=ON
> -DRUN_SWIG=ON`
>
> OR
>
> `cmake ../ -DRUN_SWIG=ON -DPYTHON_EXECUTABLE=/usr/bin/python3
> -DPYTHON_INCLUDE_DIR=/Library/Frameworks/Python.framework/
> Versions/3.5/include/python3.5m
> -DPYTHON_LIBRARY=/Library/Frameworks/Python.framework/
> Versions/3.5/lib/libpython3.5m.dylib
> -DPYTHON_BINDINGS=ON`
>
> It gives the following error at the end after a lot of successful output:
>
> -- Found PythonInterp: /usr/bin/python3.6 (found version "1.4")
> -- Found SWIG: /usr/local/bin/swig (found version "3.0.12")
> -- Found SWIG: /usr/local/bin/swig (found suitable version "3.0.12",
> minimum required is "2.0")
> -- Found PythonLibs:
> /usr/local/Cellar/python3/3.6.0/Frameworks/Python.framework/
> Versions/3.6/lib/libpython3.6m.dylib
> (found version "3.6.0")
> -- Python bindings will be compiled
> CMake Error at scripts/CMakeLists.txt:120 (install):
> install TARGETS given no LIBRARY DESTINATION for module target
> "bindings_python".
> CMake Error at scripts/CMakeLists.txt:123 (install):
> install FILES given no DESTINATION!
> CMake Error at scripts/CMakeLists.txt:126 (install):
> install FILES given no DESTINATION!
> -- Configuring incomplete, errors occurred!
> See also
> "/usr/local/Cellar/obabel/openbabel-master/ali/
> CMakeFiles/CMakeOutput.log".
> See also
> "/usr/local/Cellar/obabel/openbabel-master/ali/CMakeFiles/CMakeError.log".
>
>
> I am not sure why It detects the Python as v1.4 `-- Found PythonInterp:
> /usr/bin/python3.6 (found version "1.4") ` instead of finding v.3.5.
> I tried all the procedure with python 3.6 as well but the same errors
> occur.
> I am also using the openbabel obtained from github which was said to be
> working with these commands at the following post:
> http://forums.openbabel.org/OpenBabel-for-Python-3-td4659432.html
> But it doesn't work as well.
> Please help me as I require this module for my research.
> Thanks
>
>
>
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> How-to-Install-openbabel-for-Python-3-6-on-macOS-Sierra-10-
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