问题解决：SyntaxError: (unicode error) ‘unicodeescape‘ codec can‘t decode bytes in position 3-4: truncate

原创于 2024-04-02 03:41:48 发布 · 453 阅读

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文章讲述了在Python代码中处理文件路径时遇到的UnicodeEscape错误，通过添加r前缀、替换反斜杠和使用双反斜杠解决了这个问题。作者提供了三种修改后的代码示例。

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问题：

B:\anaconda3\python.exe "D:\...\Small_Case\change_suffix.py" 
  File "D:\...\Small_Case\change_suffix.py", line 17
    print(os.listdir("\C:\Users\SueMagic\Desktop\New-Media_File\picture"))
                                                                        ^
SyntaxError: (unicode error) 'unicodeescape' codec can't decode bytes in position 3-4: truncated \UXXXXXXXX escape

Process finished with exit code 1

原因：

路径被转义了

部分代码:

def change_suffix():
    old_file_name_list = []
    start_time = time.time()
    # print("ok")
    path = "C:\Users\SueMagic\Desktop\New-Media_File\picture"
    print(os.listdir(path))

解决：

- 1.在代码前加`r`防止被转义

- 2.将反斜杠改成正斜杠

- 3.将单反斜杠改成双反斜杠

更改后：

1.`部分代码:`


def change_suffix():
    old_file_name_list = []
    start_time = time.time()
    # print("ok")
    path = r"C:\Users\SueMagic\Desktop\New-Media_File\picture"
    print(os.listdir(path))

2.`部分代码:`


def change_suffix():
    old_file_name_list = []
    start_time = time.time()
    # print("ok")
    path = r"C:/Users/SueMagic/Desktop/New-Media_File/picture"
    print(os.listdir(path))

3.`部分代码:`


def change_suffix():
    old_file_name_list = []
    start_time = time.time()
    # print("ok")
    path = "C:\\Users\\SueMagic\\Desktop\\New-Media_File\\picture"
    print(os.listdir(path))