What does '_' do in Django code?

Question

Why does this Django code use _ in front of 'has favicon'

has_favicon = models.BooleanField(_('has favicon'))

Answer 1

If you look in the import statements, you'll find that they tied _ to a function that turns stuff into unicode and localizes it by writing:

from django.utils.translation import ugettext_lazy as _

Answer 2

_ in Django is a convention that is used for localizing texts. It is an alias for ugettext_lazy. Read Lazy translation in the docs for more info about it.