An example of how use a virtual environment

Here is an example of how to use a virtual environment to install a software.

In this example the aims is to install POPULSE MIA software in a virtual environment from the sources, with populse_db, capsul and mia_processes installed from sources as well.

The different steps are noted such that they are independent - obviously the "workon" command is only necessary once in a terminal session if several of the steps are performed. All the code will reside in a directory called "populse_mia_dir", and the virtual environment in this example is populse_mia_env. Both can be adapted at will (and possibly have the same name if desired).

Prepare virtual environment and working directory

mkvirtualenv --no-site-packages --python=/usr/bin/python3 populse_mia_env mkdir ~/my_code_directory/populse_mia_dir

Install populse_db

cd ~/my_code_directory/populse_mia_dir git clone git@github.com:populse/populse_db.git cd populse_db workon populse_mia_env python3 setup.py install --prefix ~/.virtualenvs/populse_mia_env

Install capsul

cd ~/my_code_directory/populse_mia_dir git clone git@github.com:populse/capsul.git capsul cd capsul workon populse_mia_env python3 setup.py install --prefix ~/.virtualenvs/populse_mia_env

Install mia_processes

cd ~/my_code_directory/populse_mia_dir git clone git@github.com:populse/mia_processes.git mia_processes cd mia_processes workon populse_mia_env python3 setup.py install --prefix ~/.virtualenvs/populse_mia_env

Install populse_mia

cd ~/my_code_directory/populse_mia_dir git clone git@github.com:populse/populse_mia.git populse_mia cd populse_mia workon populse_mia_env python3 setup.py install --prefix ~/.virtualenvs/populse_mia_env

Run populse_mia

cd ~/my_code_directory/populse_mia_dir/populse_mia workon populse_mia_env python3 python/populse_mia/main.py