def get_fields_before_postal(self):
        if self.fields_before_postal is None:
            return []

        fields = []
        for field in self.fields_before_postal:
            try:
                fields.append(self[field])
            except KeyError:
                continue
        return fields
Returns the fields which are supposed to be displayed before the postal
dataset/ETHPy150Open diefenbach/django-lfs/lfs/addresses/forms.py/AddressBaseForm.get_fields_before_postal