def __init__(self, *args, **kwargs):
        if not "choices" in kwargs:
            kwargs["choices"] = zones.ALL_TIMEZONE_CHOICES
        kwargs["coerce"] = coerce_timezone_value
        super(TimeZoneField, self).__init__(*args, **kwargs)
dataset/ETHPy150Open paluh/django-tz/django_tz/forms.py/TimeZoneField.__init__/original