[Django]-NameError: name PositiveSmallIntegerField is not defined

0👍

Throwing this in here because I found myself with the same error, creating a model for a
song, too!

from django.db import models

class Track(models.Model):
  release  = models.ForeignKey('Release', on_delete=models.CASCADE)
  position = models.PositiveSmallIntegerField()
  number   = PositiveSmallIntegerField()
  name     = models.CharField(max_length=100)
  length   = models.DurationField()

There is a slight difference, here. I left out the namespace of models. before my PositiveSmallIntegerField. It looks like you didn’t do that, above, but maybe someone else with a similar error will made my mistake, too.

Here was my stacktrace:

(env) Cam@cambook:~/Sites/juke% python manage.py makemigrations playlists
Traceback (most recent call last):
File "manage.py", line 15, in <module>
    execute_from_command_line(sys.argv)
  File "/Users/Cam/Sites/juke/env/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
    utility.execute()
  File "/Users/Cam/Sites/juke/env/lib/python3.6/site-packages/django/core/management/__init__.py", line 347, in execute
    django.setup()
  File "/Users/Cam/Sites/juke/env/lib/python3.6/site-packages/django/__init__.py", line 24, in setup
    apps.populate(settings.INSTALLED_APPS)
  File "/Users/Cam/Sites/juke/env/lib/python3.6/site-packages/django/apps/registry.py", line 112, in populate
    app_config.import_models()
  File "/Users/Cam/Sites/juke/env/lib/python3.6/site-packages/django/apps/config.py", line 198, in import_models
    self.models_module = import_module(models_module_name)
  File "/usr/local/Cellar/python/3.6.5_1/Frameworks/Python.framework/Versions/3.6/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 994, in _gcd_import
  File "<frozen importlib._bootstrap>", line 971, in _find_and_load
  File "<frozen importlib._bootstrap>", line 955, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 665, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 678, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/Users/Cam/Sites/juke/playlists/models.py", line 60, in <module>
    class Track(models.Model):
  File "/Users/Cam/Sites/juke/playlists/models.py", line 63, in Track
    number   = PositiveSmallIntegerField()
NameError: name 'PositiveSmallIntegerField' is not defined

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