Jupyter修改默认路径问题(SyntaxError: (unicode error) 'utf-8' codec can't decode byte 0xb5 in position 0)

ゞ浴缸里的玫瑰 2023-05-21 15:29 15阅读 0赞

### Jupyter修改默认路径问题 ###

*  1、问题描述
 *  2、总结

# 1、问题描述 #

Exception while loading config file C:\Users\Administrator\.jupyter\jupyter_notebook_config.py
        Traceback (most recent call last):
          File "C:\mysoftware\install\anacoda\lib\site-packages\traitlets\config\application.py", line 562, in _load_config_files
            config = loader.load_config()
          File "C:\mysoftware\install\anacoda\lib\site-packages\traitlets\config\loader.py", line 457, in load_config
            self._read_file_as_dict()
          File "C:\mysoftware\install\anacoda\lib\site-packages\traitlets\config\loader.py", line 489, in _read_file_as_dict
            py3compat.execfile(conf_filename, namespace)
          File "C:\mysoftware\install\anacoda\lib\site-packages\ipython_genutils\py3compat.py", line 198, in execfile
            exec(compiler(f.read(), fname, 'exec'), glob, loc)
          File "C:\Users\Administrator\.jupyter\jupyter_notebook_config.py", line 214
        SyntaxError: (unicode error) 'utf-8' codec can't decode byte 0xb5 in position 0: invalid start byte

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70]

`jupyter_notebook_config`中具体配置如下：  
`c.NotebookApp.notebook_dir = 'D:nanligong\mianshi\project\python\第二版\'`，这里存在中文路径，所以报`'utf-8' codec can't decode byte 0xb5 in position 0: invalid start byte`的错误。将文件名称去掉或改成中文名称即可。

还有另外一个问题。

[C 23:07:30.387 NotebookApp] Bad config encountered during initialization:
    [C 23:07:30.387 NotebookApp] No such notebook dir: ''D:\\\nanligong\\mianshi\\project\\python''
    The Jupyter HTML Notebook.
    
    This launches a Tornado based HTML Notebook Server that serves up an
    HTML5/Javascript Notebook client.
    
    Subcommands
    -----------
    
    Subcommands are launched as `jupyter-notebook cmd [args]`. For information on
    using subcommand 'cmd', do: `jupyter-notebook cmd -h`.
    
    list
        List currently running notebook servers.
    stop
        Stop currently running notebook server for a given port
    password
        Set a password for the notebook server.
    
    Options
    -------
    
    Arguments that take values are actually convenience aliases to full
    Configurables, whose aliases are listed on the help line. For more information
    on full configurables, see '--help-all'.
    
    --debug
        set log level to logging.DEBUG (maximize logging output)
    --generate-config
        generate default config file
    -y
        Answer yes to any questions instead of prompting.
    --no-browser
        Don't open the notebook in a browser after startup.
    --pylab
        DISABLED: use %pylab or %matplotlib in the notebook to enable matplotlib.
    --no-mathjax
        Disable MathJax
        
        MathJax is the javascript library Jupyter uses to render math/LaTeX. It is
        very large, so you may want to disable it if you have a slow internet
        connection, or for offline use of the notebook.
        
        When disabled, equations etc. will appear as their untransformed TeX source.
    --allow-root
        Allow the notebook to be run from root user.
    --script
        DEPRECATED, IGNORED
    --no-script
        DEPRECATED, IGNORED
    --log-level=<Enum> (Application.log_level)
        Default: 30
        Choices: (0, 10, 20, 30, 40, 50, 'DEBUG', 'INFO', 'WARN', 'ERROR', 'CRITICAL')
        Set the log level by value or name.
    --config=<Unicode> (JupyterApp.config_file)
        Default: ''
        Full path of a config file.
    --ip=<Unicode> (NotebookApp.ip)
        Default: 'localhost'
        The IP address the notebook server will listen on.
    --port=<Int> (NotebookApp.port)
        Default: 8888
        The port the notebook server will listen on.
    --port-retries=<Int> (NotebookApp.port_retries)
        Default: 50
        The number of additional ports to try if the specified port is not
        available.
    --transport=<CaselessStrEnum> (KernelManager.transport)
        Default: 'tcp'
        Choices: ['tcp', 'ipc']
    --keyfile=<Unicode> (NotebookApp.keyfile)
        Default: ''
        The full path to a private key file for usage with SSL/TLS.
    --certfile=<Unicode> (NotebookApp.certfile)
        Default: ''
        The full path to an SSL/TLS certificate file.
    --client-ca=<Unicode> (NotebookApp.client_ca)
        Default: ''
        The full path to a certificate authority certificate for SSL/TLS client
        authentication.
    --notebook-dir=<Unicode> (NotebookApp.notebook_dir)
        Default: ''
        The directory to use for notebooks and kernels.
    --browser=<Unicode> (NotebookApp.browser)
        Default: ''
        Specify what command to use to invoke a web browser when opening the
        notebook. If not specified, the default browser will be determined by the
        `webbrowser` standard library module, which allows setting of the BROWSER
        environment variable to override it.
    --pylab=<Unicode> (NotebookApp.pylab)
        Default: 'disabled'
        DISABLED: use %pylab or %matplotlib in the notebook to enable matplotlib.
    
    To see all available configurables, use `--help-all`
    
    Examples
    --------
    
        jupyter notebook                       # start the notebook
        jupyter notebook --certfile=mycert.pem # use SSL/TLS certificate
        jupyter notebook password              # enter a password to protect the server

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 1]

还是由于路径错误造成的。`c.NotebookApp.notebook_dir = 'D:\nanligong\mianshi\project\python'`，这里注意需要将`D:\nanligong`改成`D:nanligong`,其余的一样即`D:\nanligong\mianshi\project\python`，这里有点奇葩，一般`win`上都是需要加上`\`，但是这里加了反而定位不到。暂时记录一下这个问题吧！还有一个问题。

NotebookApp] Exception while loading config file C:\Users\Administrator\.jupyter\jupyter_notebook_config.py
        Traceback (most recent call last):
          File "C:\mysoftware\install\anacoda\lib\site-packages\traitlets\config\application.py", line 562, in _load_config_files
            config = loader.load_config()
          File "C:\mysoftware\install\anacoda\lib\site-packages\traitlets\config\loader.py", line 457, in load_config
            self._read_file_as_dict()
          File "C:\mysoftware\install\anacoda\lib\site-packages\traitlets\config\loader.py", line 489, in _read_file_as_dict
            py3compat.execfile(conf_filename, namespace)
          File "C:\mysoftware\install\anacoda\lib\site-packages\ipython_genutils\py3compat.py", line 198, in execfile
            exec(compiler(f.read(), fname, 'exec'), glob, loc)
          File "C:\Users\Administrator\.jupyter\jupyter_notebook_config.py", line 214
            c.NotebookApp.notebook_dir = 'D:\nanligong\mianshi\project\python\'
                                                                              ^
        SyntaxError: EOL while scanning string literal

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 2]

这里已经指的很清楚了。`c.NotebookApp.notebook_dir = 'D:\nanligong\mianshi\project\python\'`。末尾不能有`\`。这个路径的细节也太多了，一行配置3个异常，服了。

最终正确的配置应该是`c.NotebookApp.notebook_dir = 'D:nanligong\mianshi\project\python'`,运行启动命令。控制台如下：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 3]

根据控制台输出，我们发现程序已经正常启动。

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 4]

# 2、总结 #

书上的代码直接运行绝大部分是对的，但是总有一些软件的更新使得作者无能为力。之前的API是对的，但是之后就废弃了或修改了是常有的事。所以我们需要跟踪源代码。这只是一个小小的问题，如果没有前辈的无私奉献，很难想象我们自己一天能学到多少内容。感谢各位前辈的辛勤付出，让我们少走了很多的弯路！

点个赞再走呗！欢迎留言哦！

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[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 1]: /images/20230521/ae197133a9254d4b8917de4bfbaaaad8.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 2]: /images/20230521/9afeab8add1540e196307dd9dd838d07.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 3]: /images/20230521/83f7b2d85a2848c58dc99672ebc0ffb7.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzMyNTEwNTk3_size_16_color_FFFFFF_t_70 4]: /images/20230521/80096e7d5b0d44d09ab5a4a155f9f159.png

Jupyter修改默认路径问题(SyntaxError: (unicode error) 'utf-8' codec can't decode byte 0xb5 in position 0)

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