Django 2.* positive integers validation

models.py

from django.core.validators import MaxValueValidator, MinValueValidator


class SomeModel(models.Model):
    # ...    
    posiitive_integer = models.PositiveIntegerField(verbose_name='Some amount from 0 to 100', help_text='from 0 to 100', validators=[MinValueValidator(0), MaxValueValidator(100)])
    # ...