Install (source code)

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Step-by-step Installation Instructions for OpenBabel

These instructions describe the installation procedure for OpenBabel 2.0.2. For more different releases, the version number will be different and you should take this in account when reading the instructions below. In addition, these instructions assume that you have root access.

(1) Download the latest version (2.0.2, currently)

(2) Open a command window, change directory into 'openbabel', and decompress the downloaded file with following command:

tar zxvf openbabel-2.0.2.tar.gz

This will create a folder called 'openbabel-2.0.2'.

(3) You now need to configure and compile openbabel. To do this, change directory into 'openbabel-2.0.2'. Run the following commands, one after the other

./configure | tee configure.out
make | tee make.out

If there are any errors at this point, send an email to the openbabel-discuss mailing list and attach the files 'configure.out' and 'make.out'.

(4) If you have root permissions, you should install openbabel globally. As root, run the following command:

make install

(5) If you want to use OpenBabel from Python, you now need to compile the python extension. This may require an extra Python package depending on your Linux distribution. For example, for Debian you need the 'python-dev' package (installed using 'apt-get'); for SUSE, you need 'python-devel' (installed using YaST).

Change directory to 'openbabel-2.0.2/scripts/python' and run:

python build

(6) To install the python interface globally, as root type:

python install

(7) It's all done.