title: Django: __init__() got an unexpected keyword argument 'choices'
body: <p>I'm trying to create a form, and pass on the values entered by the use into a database.</p>
  
  <pre><code>models.py
  
  from django.db import models
  
  class Evangelized(models.Model):
      full_name = models.CharField(max_length = 128)
      email = models.EmailField()
      mobile_no = models.CharField(unique = True, max_length = 128)
      twitter_url = models.CharField(unique = True, max_length = 128)
      GENDER_CHOICES = (('M', 'Male'), ('F', 'Female'), ('U', 'Unisex/Parody'))
      gender = models.CharField(max_length=1, choices=GENDER_CHOICES)
      AREA_CHOICES = (('Govt', 'Govt'), ('Entertainment', 'Entertainment'), ('Automobile', 'Automobile'),
                          ('Careers', 'Careers'), ('Books', 'Books'), ('Family', 'Family'), ('Food', 'Food'),
                              ('Gaming', 'Gaming'), ('Beauty', 'Beauty'), ('Sports', 'Sports'), ('Events', 'Events'),
                                  ('Business', 'Business'), ('Travel', 'Travel'), ('Health', 'Health'), ('Technology','Technology'))
      area_of_interest = models.CharField(choices = AREA_CHOICES, max_length = 128)
      other_area_of_interest = models.CharField(blank = True, max_length = 128)
      city = models.CharField(max_length = 128)
      BOOL_CHOICES = ((True, 'Yes'), (False, 'No'))
      other_social_accounts = models.BooleanField(choices = BOOL_CHOICES, default = None)
      questions = models.CharField(blank = True, max_length = 1280)
      about_yourself = models.CharField(blank = False, max_length = 1280)
      referrer = models.CharField(max_length = 128)
  </code></pre>
  
  <p>forms.py</p>
  
  <pre><code>   from django import forms
  from rango.models import Evangelized
  
  class EvangelizedForm(forms.ModelForm):
      full_name = forms.CharField(help_text="Full Name")
      email = forms.CharField(help_text="Email ID")
      mobile_no = forms.CharField(help_text="Mobile number")
      twitter_url = forms.CharField(help_text="Twitter URL")
      gender = forms.ChoiceField(widget=forms.RadioSelect(), 
                   choices=Evangelized.GENDER_CHOICES, help_text="Gender")
      area_of_interest = forms.MultipleChoiceField(widget=forms.CheckboxSelectMultiple(),
                                                      choices=Evangelized.AREA_CHOICES, help_text="Areas of interest(Upto 3)")
      """def clean_area_of_interest(self):
          if len(self.cleaned_data['area_of_interest']) &gt; 3:
              raise forms.ValidationError('Select no more than 3.')
          return self.cleaned_data['area_of_interest']"""
      other_area_of_interest = forms.CharField(help_text="Other area of interest")
      city = forms.CharField(help_text="City")
      other_social_accounts = forms.CharField(widget=forms.RadioSelect(),choices=Evangelized.BOOL_CHOICES, help_text="Do you have other social accounts?", max_length=128)
      questions = forms.CharField(help_text="Do you have any questions?")
      about_yourself = forms.CharField(help_text="Tell us about yourself")
      referrer = forms.CharField(help_text="I heard about this platform via:")
  
      class Meta:
          model = Evangelized
          fields = ('full_name', 'email', 'mobile_no', 'twitter_url', 'gender', 'area_of_interest', 'other_area_of_interest', 'city', 'other_social_accounts',
                      'questions', 'about_yourself', 'referrer')
  </code></pre>
  
  <p>views.py</p>
  
  <pre><code>def fillform(request):
      if request.method == 'POST':
          form = EvangelizedForm(request.POST)
          if form.is_valid():
              form.save(commit = True)
              return index(request)
          else:
              form.errors
      else:
          form = EvangelizedForm()
  
      return render(request, 'rango/fillform.html', {'form': form})
  </code></pre>
  
  <p>However, I'm encountering the following error:</p>
  
  <pre><code>Exception Type: TypeError at /rango/
  Exception Value: __init__() got an unexpected keyword argument 'unique'
  </code></pre>
  
  <p>What seems to be wrong with my code? And what does this error signify?</p>
  
  <p>EDIT:</p>
  
  <p>I've modified the source code of my <code>forms.py</code> file, and also made a slight chance in the original title. Seems like the <code>choices</code> key in the parameters on my form fields is generating an error. However, the code is syntactically correct, right? </p>