Как сделать так, чтобы когда элемент из нового списка меньше чем из старого выводились все элементы, которые меньше

    with open(f'data/number.txt') as file_0:
        number = file_0.read().count('0')
        old_number = number - 1
 
    with open(f'data/{number}. products.json', encoding='utf-8') as file_0:
        products_dict = json.load(file_0)
 
        for k, v in products_dict.items():
            all_new_products = f"{v['secret_price']}"
 
    with open(f'data/{old_number}. products.json', encoding='utf-8') as file_0:
        products_dict = json.load(file_0)
 
        for k, v in products_dict.items():
            all_old_products = f"{v['secret_price']}"
 
            if all_new_products < all_old_products:
                for k, v in products_dicts.items():
                    all_products = f"{hlink(v['product_name'], v['product_url'])}\n" \
                           f"{hunderline('Цена: ', v['product_price'])}\n" \
                           f"{hcode('Скидка: ', v['product_sale'])}\n"

with open(f'data/number.txt') as file_0:
        number = file_0.read().count('0')
        old_number = number - 1
 
with open(f'data/{number}. products.json',\
             encoding='utf-8') as file_new,\
     open(f'data/{old_number}. products.json',\
             encoding='utf-8') as file_old:
    products_dict_new = json.load(file_new)
    products_dict_old = json.load(file_old)
 
for key in products_dict_new.keys():
    if key in products_dict_old:
        if (int(products_dict_new[key]['secret_price'])
            < int(products_dict_old[key]['secret_price'])):
                all_products[key] = products_dict_new[key]
 
print(all_products)

    with open(f'data/number.txt') as file_0:
        number = file_0.read().count('0')
        old_number = number - 1
 
    with open(f'data/{number}. products.json',
              encoding='utf-8') as file_new, \
            open(f'data/{old_number}. products.json',
                 encoding='utf-8') as file_old:
        products_dict_new = json.load(file_new)
        products_dict_old = json.load(file_old)
 
    product_dict_name = {}
    product_dict_url = {}
    product_dict_price = {}
    product_dict_sale = {}
    for key in products_dict_new.keys():
        if (int(products_dict_new[key]['secret_price'])
                < int(products_dict_old[key]['secret_price'])):
 
            for k, v in products_dict_new[key].items():
                if k == 'product_name':
                    product_dict_name = f"{v}"
                elif k == 'product_url':
                    product_dict_url = f"{v}"
                elif k == 'product_price':
                    product_dict_price = f"{v}"
                elif k == 'product_sale':
                    product_dict_sale = f"{v}"
 
            if f"{product_dict_sale}" == 'Скидки нет!':
                all_products = f"{hlink(product_dict_name, product_dict_url)}\n" \
                               f"{hunderline('Цена: ', product_dict_price)}\n" \
                               f"{hcode('Скидки нет!')}\n"
            else:
                all_products = f"{hlink(product_dict_name, product_dict_url)}\n" \
                               f"{hunderline('Цена: ', product_dict_price)}\n" \
                               f"{hcode('Скидка: ', {product_dict_sale})}\n"