Easy single `<input>` month/year form field for Django.

fields.py

class CreditCardExpirationField(forms.DateField):
    default_error_messages = {
        'min_value': _("This card has expired."),
        'invalid': _("Please specify a valid expiration date.")
    }
    widget = forms.DateInput(format='%m/%Y')
    input_formats = ('%m/%Y', '%m/%y')
    default_validators = [
        MinValueValidator(now().date()),
    ]

    def to_python(self, value):
        """
        Set day to last day of month.

        Credit cards are valid through the last day of the specified month.

        """
        value = super(CreditCardExpirationField, self).to_python(value)
        last_day = monthrange(value.year, value.month)[1]
        return datetime.date(value.year, value.month, last_day)

There is a fields for month field?