使用 for 循环打印部分字典 Python

Question

如何为 clients 字典打印出 Accountname, APIkey, APIsecret？我想以预期输出的格式打印它。

代码：

clients = {1: {'AccountName': 'Acount1', 'APIKey': 'sdhsdhjsd','APIsecret':'sadjkaskldjaskdadasdfvg'},
           2: {'AccountName':'Acount2', 'APIKey':'sdasdasdadc','APIsecret':'sdasdasdassvsdvdsfdfsaf'}}

for clients_info in clients.items():
    print("Accountname: ", clients_info['AccountName'], "APIkey: ", clients_info['APIKey'], "APIsecret: ", clients_info['APIsecret'])

预期输出：

Accountname: Acount1 APIkey: sdhsdhjsd APIsecret: sadjkaskldjaskdadasdfvg
Accountname: Acount2 APIkey: sdasdasdadc APIsecret: sdasdasdassvsdvdsfdfsaf

实际输出：

TypeError: tuple indices must be integers or slices, not str

Answer 1

如果您对外部字典的键不感兴趣，请迭代 clients.values() 而不是 clients.items()：

for clients_info in clients.values():
     print("Accountname:", clients_info['AccountName'], "APIkey:", clients_info['APIKey'], "APIsecret:", clients_info['APIsecret'])

生产

Accountname: Acount1 APIkey: sdhsdhjsd APIsecret: sadjkaskldjaskdadasdfvg
Accountname: Acount2 APIkey: sdasdasdadc APIsecret: sdasdasdassvsdvdsfdfsaf

此外，print() 会自动在其参数之间添加 space，因此您不必在输出标签后添加额外的 space。

Answer 2

当使用 clients.items() 和单个可迭代对象时，每个可迭代对象都是值键的元组，即 (key, value)。如果你愿意，你可以通过 for key, value in clients.items() 来解压它们，否则你必须在 for 循环之后自己存储它们：

for client_info_tuple in clients.items():
    client_info = client_info_tuple[1]

但我认为第一个选项更简洁。因为你不需要索引（据我所知）你可以只做 clients.values() 或者在索引变量前面放一个 _ 这样你的 IDE 就不会抱怨它。

如果你使用的是 Python >= 3.6，你也可以使用 f-strings，这让这类东西看起来更漂亮，在我看来：

for _index, client_info in clients.items():
    print(
        f"Accountname: {client_info['AccountName']} "
        f"APIKey: {client_info['APIKey']} "
        f"APIsecret: {client_info['APIsecret']}"
    )

输出：

Accountname: Acount1 APIKey: sdhsdhjsd APIsecret: sadjkaskldjaskdadasdfvg
Accountname: Acount2 APIKey: sdasdasdadc APIsecret: sdasdasdassvsdvdsfdfsaf

使用 for 循环打印部分字典 Python

Printing parts of a dictionary by using a for loop Python

format

dictionary

for-loop

python-3.x