You can find a classifiers list for your setup.py file. This is very useful for building your own Python packages.

South is a very good tool for handling migration with Python and Django.

For applying a new migration after changing some things in our models we need to execute the following commands:

 $ ./manage.py schemamigration myapp --auto
 $ ./manage.py migrate

We assume you've installed virtualenv:

 $ virtualenv --no-site-packages /tmp/test
 $ cd /tmp/test
 $ source bin/activate

If you need to install virtualenv:

 $ sudo pip install virtualenv

If you prefer more flexibility for handling different virutalenvs, you can use virtualenvwrapper:

 $ sudo pip install virtualenvwrapper

Creating a new directory for storing virtualenv files:

 $ mkdir $HOME/.virtualenvs

Edit your .bashrc and add the following lines:

 export WORKON_HOME=$HOME/.virtualenvs
 source /usr/bin/virtualenvwrapper.sh

Creating a new environment:

 $ mkvirtualenv --no-site-packages temp

Working with this new environment:

 $ workon temp

Listing all virtual environments:

 $ workon

You only need to execute the following Python code:

''.join([choice('abcdefghijklmnopqrstuvwxyz0123456789! \
 @#$%^&*(-_=+)') for i in range(50)])