Django error:name '_' is not defined,when I try to create a new model

Question

I Defined this model

from django.db import models
from django.db.models import CharField
# Create your models here.
class City(models.Model):
    state = models.ForeignKey('state.State',on_delete=models.CASCADE,)
    city_name = models.CharField(max_length=100, verbose_name=_('City Name'))

    def __unicode__(self, ):
        return str(self.city_name)

But when I want to use it I get this error in City

city_name = models.CharField(max_length=100, verbose_name=_('City Name'))
NameError: name '_' is not defined

I dont know where the problem is

Answer 1

You need to import the gettex or alternative function from django.utils.translation import gettext as _. Take a look at django i18n documentation