Feature idea: optional value about python-decouple HOT 2 CLOSED

MAX_RETRIES = decouple.config("MAX_RETRIES", cast=lambda v: int(v) if v else None, default=None)

class Optional:
    def __init__(self, type):
        self.type = type

    def __call__(self, value):
        try:
            return self.type(value)
        except:
            return None

MAX_RETRIES = decouple.config("MAX_RETRIES", cast=Optional(int), default=None)