在没有\\的Python中拆分长行

Question

I have a line of code in python that is way too long. I'm trying to format it, but my company doesn't allow the use of "\\" to break lines. I tried it as such,

(subject, message, chatRoomMsg, chatRecipientMsg) = 
  set_mail_and_chat(user, user_dict[user])

How can I format this line to make it work, but also keep the line under 80 characters.

Answer 1

Split it into two:

result = set_mail_and_chat(user, user_dict[user])
subject, message, chatRoomMsg, chatRecipientMsg = result

Answer 2

You can leave the opening parenthesis in the first line, and continue in the second one:

subject, message, chatRoomMsg, chatRecipientMsg = (
    set_mail_and_chat(user, user_dict[user]))

Answer 3

Starting the second line with ) = is valid.

(subject, message, chatRoomMsg, chatRecipientMsg
 ) = set_mail_and_chat(user, user_dict[user])

Answer 4

You can leave the opening parenthesis of function parameters in the first line,

(subject, message, chatRoomMsg, chatRecipientMsg)= set_mail_and_chat(
    user, user_dict[user])

Check the style guide for more information.