Navigates to django site package in a virtualenv

d.sh

function d {
  if [[ $1 == "-f" ]]; then
    if [[ -n $2 ]]; then
      pushd $WORKON_HOME/$2/src/django-fusionbox
    else
      __d_help
    fi
  elif [[ -n $1 ]]; then
    pushd $(__d_get_site_packages_dir $1)/django
  else
    __d_help
  fi
}

function __d_get_site_packages_dir {
  $WORKON_HOME/$1/bin/python -c "import distutils; print(distutils.sysconfig.get_python_lib())"
}

function __d_help {
  cat <<HELP
Usage: d [-f] <virtualenv>

Navigates to the django site package directory for the specified
virtualenv.  If the -f option is specified, navigates to the
django-fusionbox package directory for that virtualenv.
HELP
}