解决VS2019 Python2.7 调试时出现 UnicodeDecodeError

系统管理员 2023-01-05 05:20 131阅读 0赞

一、问题描述

VS2019 使用 Python2.7 环境进行调试时，控制台打印以下错误：

Traceback (most recent call last):  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\\_pydevd\_bundle\\pydevd\_comm.py", line 257, in \_on\_run  
    self.process\_net\_command\_json(self.py\_db, json\_contents)  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\\_pydevd\_bundle\\pydevd\_process\_net\_command\_json.py", line 190, in process\_net\_command\_json  
    cmd = on\_request(py\_db, request)  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\\_pydevd\_bundle\\pydevd\_process\_net\_command\_json.py", line 622, in on\_setbreakpoints\_request  
    py\_db, filename, btype, breakpoint\_id, line, condition, func\_name, expression, suspend\_policy, hit\_condition, is\_logpoint, adjust\_line=True)  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\\_pydevd\_bundle\\pydevd\_api.py", line 436, in add\_breakpoint  
    py\_db.apply\_files\_filter(self.\_DummyFrame(filename), filename, False)  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\pydevd.py", line 1147, in apply\_files\_filter  
    exclude\_by\_filter = self.\_exclude\_by\_filter(frame, filename)  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\pydevd.py", line 1110, in \_exclude\_by\_filter  
    if self.get\_file\_type(frame) == self.PYDEV\_FILE:  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\pydevd.py", line 897, in get\_file\_type  
    if self.dont\_trace\_external\_files(abs\_real\_path\_and\_basename\[0\]):  
  File "d:\\programfiles\\microsoft visual studio\\2019\\professional\\common7\\ide\\extensions\\microsoft\\python\\core\\debugpy\\\_vendored\\pydevd\\\_pydevd\_bundle\\pydevd\_api.py", line 807, in custom\_dont\_trace\_external\_files  
    return abs\_path.startswith(start\_patterns) or abs\_path.endswith(end\_patterns)  
UnicodeDecodeError: 'ascii' codec can't decode byte 0xcf in position 3: ordinal not in range(128)

二、解决方案

1. 修改 pydevd\_api.py

根据错误提示中的路径打开 pydevd\_api.py 文件修改如下：

import sys
    
    py_ver = sys.version
    if py_ver.split('|')[0].split('.')[0] == '2':
        reload(sys)
        sys.setdefaultencoding('gbk')

2. 添加文件 sitecustomize.py

找到Pytho2.7环境安装目录，进入<RootDir>\\Lib\\site-packages 目录，新建文件 sitecustomize.py，内容如下

import sys
    sys.setdefaultencoding('gbk')

参考：

[https://blog.csdn.net/yscoder/article/details/91900663][https_blog.csdn.net_yscoder_article_details_91900663]

[https://blog.csdn.net/l1028386804/article/details/78976807][https_blog.csdn.net_l1028386804_article_details_78976807]

[https_blog.csdn.net_yscoder_article_details_91900663]: https://blog.csdn.net/yscoder/article/details/91900663
[https_blog.csdn.net_l1028386804_article_details_78976807]: https://blog.csdn.net/l1028386804/article/details/78976807