Method safe_string_lower_n

python/ccxt/base/exchange.py:922–929

(dictionary, key_list, default_value=None)

    @staticmethod
    def safe_string_lower_n(dictionary, key_list, default_value=None):
        value = Exchange.get_object_value_from_key_list(dictionary, key_list)
        if value is not None:
            return str(value).lower()
        elif default_value is None:
            return default_value
        else:
            return default_value.lower()

    @staticmethod
    def safe_string_upper_n(dictionary, key_list, default_value=None):