字符串连接发生在python的下一行

Question

Python has a simple concatenation using the + operator. But I am observing something unusual.

I tried :

final_path = '/home/user/' + path + '/output'

Where path is a staring variable I want to concatenate.

print final_path

gives me:

/home/user/path
/output

Instead of /home/user/path/output

Why is going to the next line. Is the forward slash causing the issue. I tried using the escape character as well. but It does not work.

Answer 1

From the looks of your code, it may be the variable path that is the problem. Check to see if path has a new line at the end. Escape characters start with a backslash \\ and not a forward slash / .

Answer 2

maybe it depends on which string is contained in the variable path. If it ends with a carriage return ('\\n'), this could explain why string variable final_path is printed on 2 lines.

Regards.

Answer 3

This happens when path is from another file for example a .txt where you are importing the data. I solved this by adding path.strip() which removes whitespaces before the str and after for the newline which is being generated. Just add .strip() to your variable.

Answer 4

正如胜利者所说，您的路径变量在末尾隐式添加了“ \\ n”，因此您可以采取以下技巧来解决该问题：

final_path = '/home/user/' + path.strip('\n') + '/output'