Question

I have a Django site, with an Item object that has a boolean property active. I would like to do something like this to toggle the property from False to True and vice-versa:

def toggle_active(item_id):
    item = Item.objects.get(id=item_id)
    item.active = !item.active
    item.save()

This syntax is valid in many C-based languages, but seems invalid in Python. Is there another way to do this WITHOUT using:

if item.active:
    item.active = False
else:
    item.active = True
item.save()

The native python neg() method seems to return the negation of an integer, not the negation of a boolean.

Thanks for the help.

Answer 1

You can do this:

item.active = not item.active

That should do the trick 🙂