当dict值为列表时替换关键点

def replace_key_point(dictionary, key_point, new_value):
    for key, value in dictionary.items():
        if isinstance(value, list):
            for i in range(len(value)):
                if value[i] == key_point:
                    value[i] = new_value
        dictionary[key] = value
    return dictionary

my_dict = {
    'key1': 'value1',
    'key2': ['point1', 'point2', 'point3'],
    'key3': 'value3'
}

new_dict = replace_key_point(my_dict, 'point2', 'new_point')

print(new_dict)

{
    'key1': 'value1',
    'key2': ['point1', 'new_point', 'point3'],
    'key3': 'value3'
}