SyntaxError: (unicode error) 'unicodeescape

问题:

This question already has an answer here:

Python Automatically ignore unicode string (1 answer)

Closed 2 years ago.

I'm completely new to Python and even programming and also this forum. So I just was testing some new stuff that I have learned with Python like printing statements but I get this error:

SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 1-2: truncated \uXXXX escape

Basically I just wrote this code:

print('C\users\desktop')

So what's going on there??

回答1:

As the error message suggests, \u is being interpreted as an escape. In Python 3, you can avoid this by using a raw string:

>>> print(r'C\users\desktop')
C\users\desktop

Unfortunately, in Python 2 \u escapes are still interpreted inside raw (unicode) strings, so you have to do something else. One possibility is to use bytestrings (i.e., not unicode). One possibility is to do 'C\\users\\desktop'. Another is to do something like 'C\\' r'users\desktop' (using string concatenation by juxtaposition). I have encountered this issue myself with Python 2 and, personally, since 99% of the problem is with the Users directory on Windows, I just created a directory junction that aliases C:\TheUsers to C:\Users. Then I can do r"C:\TheUsers" with no problems.