《笨办法学Python》习题0：蓄势待发

FishC

《笨办法学Python》

（小甲鱼精译版 · 原书第五版）

[美] Zed A. Shaw 著  |  小甲鱼 译

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混分赖子 发表于 2025-02-10 01:59
FishC 发表于 2025-2-10 01:57
你在安装 JupyterLab  ...

你可以通过按 Ctrl + C 来中断在终端中的当前操作。这将会停止 pip 安装过程。

如果你需要进一步帮助，请告诉我！

以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。

混分赖子

终于成功来到这一步了，真不容易 ！

混分赖子

混分赖子 发表于 2025-2-10 02:12
终于成功来到这一步了，真不容易 ！

总结：异常的来源是，没有安装 jupyterlab ，第一次让它自动安装，花了几个钟头还没完，后面用清华大学镜像源，贼快。最后就是 jupyter 文件夹里面的 runtime 文件夹，需要更改只读属性。不然也还是会报错。

苍穹猎鹰

Anaconda 点击免费下载没反应，怎么回事？谢谢

micfishc

混分赖子 发表于 2025-2-9 16:44
你好，请问解决了吗，我也遇到这个了

没解决。直接跳过这部分内容，学后面的课程了……

小土三火

@FishC
为什么 在powershell（终端）里，输入start juypter-lab 或单独输入 jupyter-lab 都能打开 jupyter 呢？

FishC

小土三火 发表于 2025-02-10 23:38
@FishC
为什么 在powershell（终端）里，输入start j ...

在PowerShell中输入 start jupyter-lab 或 jupyter-lab 都能打开 Jupyter lab，是因为这两种方法本质上做的事情是一样的。

原因如下：

• 使用 start 命令： start 是 PowerShell 和命令提示符中的一个内建命令，用于启动一个新进程。通过输入 start jupyter-lab，它会启动一个新的进程来运行 jupyter-lab。
• 直接输入 jupyter-lab： 直接运行 jupyter-lab 会调用系统的命令解析器，找到 Jupyter Lab 可执行文件并运行它。
  

所以，不论你是使用 start jupyter-lab 还是直接输入 jupyter-lab，最终效果都是相同的——启动了 Jupyter Lab。

如果你还有其他问题，随时提问哦！

以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。

混分赖子

micfishc 发表于 2025-2-10 10:50
没解决。直接跳过这部分内容，学后面的课程了……

那你怎么敲代码

micfishc

混分赖子 发表于 2025-2-11 14:14
那你怎么敲代码

直接安装anaconda

z124848220z

输入juprter打开浏览器之后提示：无法访问您的文件，该文件可能已被移至别处、修改或删除，报错如下

z124848220z

@FishC
输入juprter打开浏览器之后提示：无法访问您的文件，该文件可能已被移至别处、修改或删除，报错如下

FishC

z124848220z 发表于 2025-02-13 13:33
@FishC
输入juprter打开浏览器之后提示：无法访问您 ...

看起来你在打开Jupyter Notebook时遇到了问题。这个报错通常表示你试图打开的Notebook文件不存在或路径不正确。

请尝试以下步骤来解决问题：

• 确认你想要打开的Notebook文件确实存在，并且路径正确。
• 在命令行中，使用cd命令切换到包含Notebook文件的目录，然后再运行Jupyter Notebook。
• 确保你输入的文件名和路径是正确的，包括大小写。
• 如果问题依旧存在，尝试更新你的Jupyter Notebook和相关依赖：
  
  1. 
     
  2. pip install --upgrade jupyter
     

  复制代码
  
  

如果以上步骤无法解决问题，请提供更多详细信息以便进一步帮助你。

以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。

z124848220z

FishC 发表于 2025-2-13 13:33
看起来你在打开Jupyter Notebook时遇到了问题。这个报错通常表示你试图打开的Notebook文件不存在或路径 ...

我是打開jupyter-lab這個瀏覽器可以打開，但是提示無法訪問，而不是說沒目錄沒有

FishC

z124848220z 发表于 2025-02-13 13:38
FishC 发表于 2025-2-13 13:33
看起来你在打开Jupyte ...

输入 jupyter-lab 后提示无法访问文件，很可能是由于路径问题或安装步骤中出现了某些错误。请按照以下步骤进行排查和解决：

• 确认安装是否成功
  
  确保Jupyter Lab已正确安装。在命令行中输入：
  
  1. 
     
  2. pip show jupyterlab
     

  复制代码
  
  
  如果没有输出相关信息，请通过以下命令重新安装：
  
  1. 
     
  2. pip install jupyterlab
     

  复制代码
  
  
• 检查路径和权限
  
  确保您在正确的目录中运行命令，并且具有相应的权限。可以尝试切换到一个简单的工作目录，例如桌面，使用以下命令：
  
  1. 
     
  2. cd ~/Desktop
     
  3. jupyter-lab
     

  复制代码
  
  
• 检查浏览器设置
  
  有时，浏览器设置可能会阻止页面访问。确保您的浏览器没有安装拦截Jupyter Lab访问的插件，并将其设置为默认浏览器。
  
• 更新Jupyter Lab
  
  确保您使用的是最新版本的Jupyter Lab，可能存在已修复的BUG。更新命令如下：
  
  1. 
     
  2. pip install --upgrade jupyterlab
     

  复制代码
  
  
• 查看详细日志
  
  运行以下命令查看详细日志以获取更多信息：
  
  1. 
     
  2. jupyter-lab --debug
     

  复制代码
  
  
  日志中的详细信息可以帮助进一步诊断问题。
  

如果完成上述步骤后问题依旧存在，请提供报错截图或者日志的详细信息以便进一步帮助你。

若有更多问题，请继续在该帖下方留言并 [at]FishC。

[:10_325:]

以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。

z124848220z

FishC 发表于 2025-2-13 13:38
输入 jupyter-lab 后提示无法访问文件，很可能是由于路径问题或安装步骤中出现了某些错误。请按照以下 ...

輸入重新安裝，如下，最後報錯，提示沒有權限，該如何解決,輸出代碼如下：
PS C:\Users\delta> pip install --upgrade jupyterlab
Requirement already satisfied: jupyterlab in d:\programdata\anaconda3\lib\site-packages (4.2.5)
Collecting jupyterlab
  Downloading jupyterlab-4.3.5-py3-none-any.whl.metadata (16 kB)
Requirement already satisfied: async-lru>=1.0.0 in d:\programdata\anaconda3\lib\site-packages (from jupyterlab) (2.0.4)
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Requirement already satisfied: executing in d:\programdata\anaconda3\lib\site-packages (from stack-data->ipython>=7.23.1->ipykernel>=6.5.0->jupyterlab) (0.8.3)
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Downloading jupyterlab-4.3.5-py3-none-any.whl (11.7 MB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 11.7/11.7 MB 3.4 MB/s eta 0:00:00
Downloading webcolors-24.11.1-py3-none-any.whl (14 kB)
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Downloading isoduration-20.11.0-py3-none-any.whl (11 kB)
Downloading uri_template-1.3.0-py3-none-any.whl (11 kB)
Installing collected packages: webcolors, uri-template, fqdn, isoduration, jupyterlab
  Attempting uninstall: jupyterlab
    Found existing installation: jupyterlab 4.2.5
    Uninstalling jupyterlab-4.2.5:
ERROR: Could not install packages due to an OSError: [WinError 5] 拒绝访问。: 'd:\\programdata\\anaconda3\\scripts\\jupyter-lab.exe'
Consider using the `--user` option or check the permissions.

FishC

z124848220z 发表于 2025-02-13 13:50
FishC 发表于 2025-2-13 13:38
输入 jupyter-lab 后 ...

您遇到的错误提示“拒绝访问”可能是由于权限不足导致的。可以尝试以下几种方法来解决这个问题：

1. **使用管理员权限运行PowerShell**：
   打开PowerShell时，右键选择“以管理员身份运行”，然后再次尝试安装命令：
  

1. pip install --upgrade jupyterlab

复制代码

2. **使用`--user`选项**：
   如果您没有管理员权限，可以在安装包时使用`--user`选项，这样会将包安装到用户目录中，而不是系统范围内：
  

1. pip install --upgrade jupyterlab --user

复制代码

3. **检查并修改文件夹权限**：
   手动检查并修改安装路径（例如 `d:\programdata\anaconda3\scripts\`）的权限，确保当前用户具有完全控制权。

下面是具体操作步骤：

1. 使用管理员权限打开PowerShell：
  

1. 
   
2.    Start-Process PowerShell -Verb RunAs
   
3.    

复制代码

2. 在管理员权限的PowerShell窗口中输入以下命令：
  

1. 
   
2.    pip install --upgrade jupyterlab
   
3.    

复制代码

3. 如果上述方法仍然失败，请尝试使用`--user`选项进行安装：
  

1. 
   
2.    pip install --upgrade jupyterlab --user
   
3.    

复制代码

4. 还可以手动修改安装路径的权限：
   - 右键点击 `d:\programdata\anaconda3\scripts\` 文件夹。
   - 选择“属性”。
   - 切换到“安全”选项卡。
   - 点击“编辑”，然后确保给当前用户分配完全控制权限。

如果执行以上步骤后依然有问题，请提供更新后的错误信息以便为您进一步解决问题。

以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。

z124848220z

FishC 发表于 2025-2-13 13:50
您遇到的错误提示“拒绝访问”可能是由于权限不足导致的。可以尝试以下几种方法来解决这个问题：

1. ...

还是不行，有大佬可以帮忙白天检查一下吗

FishC

z124848220z 发表于 2025-02-13 23:12
FishC 发表于 2025-2-13 13:50
您遇到的错误提示“拒 ...

FishC 发表于 2025-2-13 14:10

如果上述方法都无法解决问题，可以尝试以下几点：

1. **卸载现有的JupyterLab**：
   尝试先卸载现有的JupyterLab版本，然后重新安装。

   在管理员权限的PowerShell中运行：
  

1. 
   
2.    pip uninstall jupyterlab
   
3.    pip install jupyterlab --user
   
4.    

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2. **检查Anaconda环境路径**：
   确保Anaconda的环境路径配置正确。可以通过创建新的Anaconda虚拟环境来避免全局环境的问题。

   创建新的虚拟环境：
  

1. 
   
2.    conda create -n myenv python=3.10
   
3.    conda activate myenv
   
4.    pip install jupyterlab
   
5.    

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3. **使用其他Python安装方式**：
   如果问题依旧，考虑重新安装Anaconda或者直接从Python官方安装Python，并使用`pip`管理包。

如需更多帮助，请详细描述您的问题和错误信息，以便我们更好地为您解答。感谢您的耐心！

如果各位大佬有其他解决方案，也请在此跟帖分享，谢谢！

以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。

z124848220z

FishC 发表于 2025-2-13 23:12
FishC 发表于 2025-2-13 14:10

如果上述方法都无法解决问题，可以尝试以下几点：

對了，我是把Anaconda是裝在E盤的，和裝在E盤有關係嗎

FishC

z124848220z 发表于 2025-02-14 08:11
FishC 发表于 2025-2-13 23:12
FishC 发表于 2025-2- ...

看来您遇到了一些问题。为了更好地帮助您，请提供更多详细信息，例如具体的错误消息或问题的描述。如果您有其他相关问题，也可以直接在此提出。我们将尽力为您提供帮助！

以上回复来自 FishC AI 小助理，如未能正确解答您的问题，请继续追问。