class ProfileForm forms ModelForm first_name forms CharField required

class ProfileForm(forms.ModelForm):
    first_name = forms.CharField(required=False, max_length=30, label=u"Имя")
    last_name = forms.CharField(required=False, max_length=30, label=u"Фамилия")
    def __init__(self, *args, **kwargs):
        super(ProfileForm, self).__init__(*args, **kwargs)
        self.fields.keyOrder = ('first_name', 'last_name', 'location', 'sex', 'avatar')

    class Meta:
        model = UserProfile
        fields = ('first_name', 'last_name', 'location', 'sex', 'avatar')

    def clean_avatar(self):
        if self.cleaned_data.get('avatar'):
            if self.cleaned_data['avatar'].size > settings.MAX_AVATAR_FILE_SIZE * 1024:
                raise forms.ValidationError(u"Превышен максимальный размер аватары")
        return self.cleaned_data['avatar']

    def save(self, request):
        usr = User.objects.get(pk=request.user.id)
        # Modify user
        usr.first_name = self.cleaned_data['first_name']
        usr.last_name = self.cleaned_data['last_name']
        usr.save()
        #forms.save_instance(self, UserProfile(user=usr))
        self.cleaned_data['user'] = usr
        if self.cleaned_data.get('avatar'):
            avatar = Image.open(StringIO(self.cleaned_data['avatar'].read()))
            avatar.resize((63,63), Image.ANTIALIAS)
            output_avatar = StringIO()
            avatar.save(output_avatar)
            self.cleaned_data['avatar'].write(output_avatar.read())
        return super(ProfileForm, self).save()