Фрукты с дисконтом

fruit = {'cumquat': 178.5, 'Oranges' : 250.4, 'Bananas': 187.0, 'Apples': 128.6, 'Pears': 179.58, 'Grapes': 405.99}
discounts = {'Apples': '24%', 'Grapes': '17%', 'Oranges': '33%'}

fruit = {'cumquat': 178.5, 'Oranges' : 250.4, 'Bananas': 187.0, 'Apples': 128.6, 'Pears': 179.58, 'Grapes': 405.99}
discounts = {'Apples': '24%', 'Grapes': '17%', 'Oranges': '33%'}
 
for i in discounts.keys():
    value = discounts[i]
    if not value.endswith('%'):
        raise ValueError(value)
    value = int(value[:-1])
    discounts[i] = value * 0.01
 
fruit2 = fruit.copy()
for i in fruit2.keys():
    if i in discounts:
        # снизит цену фруктов в словаре fruit на указанный в словаре fruit процент.
        fruit2[i] *= 1.0 - discounts[i]
    else:
        # Если фрукта из словаря fruit нет в словаре discounts, то скидка к нему соответственно, цену округлить до первого знака после запятой.
        fruit2[i] = round(fruit2[i], 1)
 
print(fruit2)
# {'cumquat': 178.5, 'Oranges': 167.76799999999997, 'Bananas': 187.0, 'Apples': 97.73599999999999, 'Pears': 179.6, 'Grapes': 336.9717}

fruit = {'cumquat': 178.5, 'Oranges': 250.4, 'Bananas': 187.0, 'Apples': 128.6,
         'Pears': 179.58, 'Grapes': 405.99}
discounts = {'Apples': '24%', 'Grapes': '17%', 'Oranges': '33%'}
 
def fruit_discounts():
    return dict( (k, round(fruit[k] * (100 - int(discounts[k][:-1])) / 100, 1))
                 for k in fruit.keys() & discounts.keys() )
 
print(fruit_discounts())

fruit = {'cumquat': 178.5, 'Oranges': 250.4, 'Bananas': 187.0, 'Apples': 128.6,
         'Pears': 179.58, 'Grapes': 405.99}
discounts = {'Apples': '24%', 'Grapes': '17%', 'Oranges': '33%'}
 
def fruit_discounts():
    return fruit | dict((k, round(fruit[k] * (100 - int(discounts[k][:-1])) / 100, 1))
                for k in fruit.keys() & discounts.keys())
 
print(fruit_discounts())

fruit = {'cumquat': 178.5, 'Oranges': 250.4, 'Bananas': 187.0, 'Apples': 128.6,
         'Pears': 179.58, 'Grapes': 405.99}
discounts = {'Apples': '24%', 'Grapes': '17%', 'Oranges': '33%'}
 
def fruit_discounts():
    fruit.update(dict((k, round(fruit[k] * (100 - int(discounts[k][:-1])) / 100, 1))
                        for k in fruit.keys() & discounts.keys()))
    return fruit
 
print(fruit_discounts())

d3 = {**d1, **d2}

fruit = {'cumquat': 178.5, 'Oranges': 250.4, 'Bananas': 187.0, 'Apples': 128.6,
         'Pears': 179.58, 'Grapes': 405.99}
discounts = {'Apples': '24%', 'Grapes': '17%', 'Oranges': '33%'}
 
def fruit_discounts():
    return {**fruit, **dict((k, round(fruit[k] * (100 - int(discounts[k][:-1])) / 100, 1))
                        for k in fruit.keys() & discounts.keys())}
 
print(fruit_discounts())