How to filter empty or NULL names in a Python Django QuerySet?

To filter empty or NULL names in a Python Django QuerySet, we can caill the exclude method.

For instance, we write

Name.objects.exclude(alias__isnull=True).exclude(alias__exact='')

to call exclude to exclude Name results that has alias set to null with

alias__isnull=True

And we exclude entries with alias set to an empty string by calling exclude with

alias__exact=''