ModelForm has no model class specified

from django.db import models
from django.utils.encoding import python_2_unicode_compatible
from django import forms
from django.forms import ModelForm

# Create your models here.

class Artist(models.Model):
#code
name = models.CharField("artist", max_length=50)
year_formed = models.PositiveIntegerField()

def __str__(self):
return self.name


class ArtistForm(forms.ModelForm):
class meta:
model = Artist
fields = ['name', 'year_formed']


class Album(models.Model):
name = models.CharField("album", max_length=50)
artist = models.ForeignKey(Artist)

def __str__(self):
return self.name


from django.shortcuts import render, render_to_response
from django.http import HttpRequest, HttpResponse, HttpResponseRedirect
from django.template import RequestContext
from Album.models import *
#from Album.forms import *

# Create your views here.
def artistform(request):
if request.method == "GET":
form = ArtistForm()
return render('Album/form.html', {'form': form})
elif request.method == "POST":
form = ArtistForm(request.POST)
form.save()
return HttpResponseRedirect('/artists')

def artists(request):
artists = Artist.objects.all()
return render_to_response('Album/artists.html', {'artists': artists})

def artistdetails(request, id):
artist = Artist.objects.get(pk = id)
return render_to_response('Album/artistdetails.html', {'artists': artists})

Environment:


Request Method: GET
Request URL: http://127.0.0.1:8000/artists/form

Django Version: 1.8.7
Python Version: 2.7.11
Installed Applications:
('django.contrib.admin',
 'django.contrib.auth',
 'django.contrib.contenttypes',
 'django.contrib.sessions',
 'django.contrib.messages',
 'django.contrib.staticfiles',
 'Album')
Installed Middleware:
('django.contrib.sessions.middleware.SessionMiddleware',
 'django.middleware.common.CommonMiddleware',
 'django.middleware.csrf.CsrfViewMiddleware',
 'django.contrib.auth.middleware.AuthenticationMiddleware',
 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
 'django.contrib.messages.middleware.MessageMiddleware',
 'django.middleware.clickjacking.XFrameOptionsMiddleware',
 'django.middleware.security.SecurityMiddleware')


Traceback:
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response
  132.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/corecode/Desktop/Python course/ms-django/music_album/Album/views.py" in artistform
  10.         form = ArtistForm()
File "/usr/local/lib/python2.7/dist-packages/django/forms/models.py" in __init__
  313.             raise ValueError('ModelForm has no model class specified.')

Exception Type: ValueError at /artists/form
Exception Value: ModelForm has no model class specified.

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