[英]How can you add multiple values into a single key in a dictionary without it having commas?
In a question I asked a while ago, I got to try PyInquirer to edit multiple lines of a .txt file at once.在我刚才问的一个问题中,我必须尝试 PyInquirer 一次编辑 .txt 文件的多行。 I tried fiddling with it, when I found a problem.
当我发现问题时,我尝试摆弄它。
This is the code:这是代码:
question = [
{
'type': 'input',
'name': 'text_lines',
'message': '',
'default': ('This is a test line\n' 'This is another test line\n')
}
]
answer = prompt(question)
print('The file says:\n {}'.format(answer['text_line']))
As you can see, the key 'default'
used parentheses but there are no commas between the strings.如您所见,键
'default'
使用括号,但字符串之间没有逗号。 When I put commas between them, the error TypeError: not all arguments converted during string formatting
occurs.当我在它们之间放置逗号时,会出现错误
TypeError: not all arguments converted during string formatting
。 How can I put two strings with the same key???我怎样才能把两个字符串放在同一个键上??? It was confusing to me because even the usage of square and curly brackets don't work.
这让我感到困惑,因为即使使用方括号和大括号也不起作用。
I just want to recreate the 'default'
key above without commas我只想重新创建上面没有逗号的
'default'
键
Edit: I didn't realize it was just concatenation.编辑:我没有意识到这只是串联。 Thanks for your answers!!
谢谢你的回答!!
Since there are no commas, that is not a tuple: it's an expression evaluation, and the expression is the concatenation of two strings.由于没有逗号,因此它不是元组:它是一个表达式评估,并且该表达式是两个字符串的连接。 Try it in interactive mode:
在交互模式下尝试:
>>> ('This is a test line\n' 'This is another test line\n')
'This is a test line\nThis is another test line\n'
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