Filter list choices - Django

filter_choices.py

## Filter choices examples below function.

@classmethod
def filter_choices(self, passed_choices):
    '''
      Filter choices, user for ChoiceField etc.
    '''
    result = []
    for reason in passed_choices:
        for item in self.REASON_CHOICES:
            if item[0] == reason:
                result.append(item)
    return result

REASON_CHOICES = [
    (CHOICE_ONE, _ ('Choice one')),
    (CHOICE_TWO, _ ('Choice two')),
    (CHOICE_THREE, _ ('Choice three')),
    (CHOICE_FOUR, _ ('Choice four')),

]

FILTERED_CHOICES = [
    CHOICE_ONE,
    CHOICE_TWO,

]
MORE_FILTERED_CHOICES = [
    CHOICE_THREE,
    CHOICE_FOUR,

]


## Usage
field = forms.ChoiceField(choices=filter_choices(FILTERED_CHOICES))