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Etiket: virtual environment

  • Preparing virtual environment for running with apache mod_wsgi & postgresql

    For completing postgresql requirements of virtual environment, install “libpq-dev” and “python-dev” packages, outside of virtual environment.

    $ deactivate (if you are in virtual environment)
    $ sudo apt-get install libpq-dev python-dev

    Re-activate virtual environment and install psycopg2 from pip repo.

    $ pip install psycopg2

    By the way, in the name of  conformist approach install ipython in virtual environment.

    $ pip install ipython

    PostgreSQL engine and python connection libraries are ready.
    Now, lets prepare wsgi file for current project. (I assumed apache and mod_wsgi installed and configured) I’m going to use /var/www/project path for example for environment root in wsgi file.

    ENV_DIR = [‘/var/www/project’]

    import site, os, sys

    base = os.path.dirname(__file__)
    sys.path.insert(0, base)
    sys.path.append(os.path.dirname(base))

    # Remember original path.
    prev_sys_path = list(sys.path)

    # Add each new site-packages directory.

    for directory in ENV_DIR:

    site.addsitedir(directory)

    # For taking new directories to the front reorder path.

    new_sys_path = []
    for item in list(sys.path):

    if item not in prev_sys_path:

    new_sys_path.append(item)
    sys.path.remove(item)

    sys.path[:0] = new_sys_path
    os.environ[‘PYTHON_EGG_CACHE’] = ‘/tmp/project_eggs’
    sys.stdout = sys.stderr
    os.environ[‘DJANGO_SETTINGS_MODULE’] = ‘%s.settings’ % os.path.basename(base)
    from django.core.handlers.wsgi import WSGIHandler
    application = WSGIHandler()

    Place the wsgi file above into root of the django project which created inside of the virtual environment directory (eg. /var/www/project/django/)

    So wsgi file is ready, and we can configure apache to use this wsgi file:

    <VirtualHost *:80>

    WSGIDaemonProcess project_name user=username group=usergroup processes=3 threads=15 inactivity-timeout=120 maximum-requests=50 python-path=/var/www/project/lib/pyton2.7/site-packages
    WSGIProcessGroup project_name
    WSGIApplicationGroup %{GLOBAL}
    WSGIScriptAlias / /var/www/project/django/wsgi
    ServerName project_name.com
    ServerAdmin admin@project_name.com
    CustomLog /var/www/project/django/log/access_log combined
    ErrorLog /var/www/project/django/log/error_log
    Alias /static “/var/www/project/django/static”

    </VirtualHost>

    Save this file under /etc/apace/sites-available as “project.conf”

    Run “$ a2ensite project.conf” command and restart (or reload) the apache service.

    Now you can see the running django installation at “http://www.project_name.com”

  • Installing Django-CMS over Python Virtual Environment on Ubuntu based systems

    Prepare for virtual environment:

    $ sudo apt-get install python-setuptools python-dev build-essential
    $ sudo easy_install pip
    $ sudo pip install virtualenv

    Creating a virtual environment:

    $ virtualenv example_env -p python2.7 –no-site-packages –distribute

    Activating virtual environment:

    $ source example_env/bin/active

    Installing Django and Django-CMS in to virtual environment:

    $ pip install PIL
    $ pip install django-cms

    the command above is also installs those required packages:

    django
    django-mptt
    django-classy-tags
    django-sekizai
    south
    html5lib

    Thats all. Library installation on virtual environment is complete. On the next, how to run django-cms on django with apache…

     

    Note: If you want to exit from virtual environment just type this:

    $ deactivate