Django snippets

# decorators.py

try:
    from functools import wraps
except ImportError:
    from django.utils.functional import wraps  # Python 2.3, 2.4 fallback.

def remember_path(view_func):
    """
    Decorator that stores the `request.path` URL in a session variable 
    to be used later, e.g. in a "Continue Shopping" link on a cart page.
    """
    def _wrapped_view_func(request, *args, **kwargs):
        request.session['last_path'] = request.path
        return view_func(request, *args, **kwargs)
    return wraps(view_func)(_wrapped_view_func)

# views.py example to remember path

@remember_path
def shopping_view(request):
    # regular view code

# views.py example to use path

def cart_view(request):
    # view code
    return render_to_response('template.html', {
        'last_path': request.session.get('last_path', '/'),
        # other context
    })