如何在不打印的情况下保持字符串的打印格式？

Question

我有一个用 print 完美格式化的变量，但没有它看起来很糟糕。 我试图将它作为电子邮件的正文传递给一个函数，以便 python 发送，但它的格式不正确。 是否有一个函数可以让它在字符串中看到 /n 等并将其转换为另一个字符串？

发送电子邮件的功能是：

def send_mail(from_email, email_group, subject_text, body_text, attachment=None):
    """
    Function to send emails.
    Inputs:
        - email_group: comma separated string of emails to send message to; str
        - attachment: Location of attachment to send; str
        - subject_text: Subject of the email; str
        - body_text: Body of the email; str
    """
    if attachment == None:
        email = Email(
            to_email=email_group,
            from_email=from_email,
            body=body_text,
            email_type='html',
            subject=subject_text)
    else:
        email = Email(
            to_email=email_group,
            from_email=from_email,
            body=body_text,
            email_type='html',
            subject=subject_text,
            attach=[attachment])
    email.send()

不打印：

System Status Update Complete Min Date: 2022-07-17 Max Date: 2022-07-17 Summary: var1 var2 var3 var4 var5 count 1905.000000 1905.000000 1905.000000 1905.000000 1905.000000

带打印：

System Status Update Complete
Min Date: 2022-07-17
Max Date: 2022-07-17
Summary:
              var1         var2         var3          var4          var5
count  1905.000000  1905.000000  1905.000000   1905.000000   1905.000000

Answer 1

正如@TimRoberts 在评论中建议的那样，在<pre>之前和</pre>之后添加它的格式确实正确。

我忘记了传递的字符串被解释为 HTML。 希望这个答案可以在将来为某人节省一些精力。

def send_mail(from_email, email_group, subject_text, body_text, attachment=None):
    """
    Function to send emails.
    Inputs:
        - email_group: comma separated string of emails to send message to; str
        - attachment: Location of attachment to send; str
        - subject_text: Subject of the email; str
        - body_text: Body of the email; str
    """
    if attachment == None:
        email = Email(
            to_email=email_group,
            from_email=from_email,
            body='<pre>'+body_text+'</pre>',
            email_type='html',
            subject=subject_text)
    else:
        email = Email(
            to_email=email_group,
            from_email=from_email,
            body='<pre>'+body_text+'</pre>',
            email_type='html',
            subject=subject_text,
            attach=[attachment])
    email.send()