gistfile1.py

from django import forms

TABLE_CAT = (
        (GASOLINE_ENGINES, 'Gasoline Engines'),
        (DIESEL_ENGINES, 'Diesel Engines'),
        (EXHAUST_AFTERTREATMENT, 'Exhaust Aftertreatment'),
        (ELECTRIFICATION, 'Electrification'),
        (DRIVETRAIN_EFFICIENCY, 'Drivetrain Effieciency'),
    )

class TableCatForm(forms.Form):
    table_category = forms.MultipleChoiceField(choices=TABLE_CAT)