将字符串连接到python中的字典列表

Question

I am trying to join a string to a list of dictionaries. I am doing:

print(site + ', '.join(search_res))

I keep getting an error: sequence item 0: expected str instance, dict found

search_res = [
    {
        "book": "Harry Potter",
        "rating": "10.0"
    },
    {
        "book": "Lord of The Rings",
        "rating": "9.0"
    }
]

site = "Fantasy"

Expected result:

"Fantasy" , [
    {
        "book": "Harry Potter",
        "rating": "10.0"
    },
    {
        "book": "Lord of The Rings",
        "rating": "9.0"
    }
]

How do I concatenate the string to the list of dictionaries without getting the sequence item 0: expected str instance, dict found error

Answer 1

Why not just print(site + str(search_res)) ?

Also you could do: print(site + ', '.join([str(dic) for dic in search_res)])

Answer 2

也许你只需要这个： print(site + ' , ' + str(search_res))

Answer 3

How do I concatenate the string to the list of dictionaries

You can't. And you don't need to either. Use string formatting , possibly together with the pprint module .