三步解決python PermissionError: [WinError 5]拒絕訪問的情況

更新時間：2020年04月22日 11:46:21 作者：PigOrz

這篇文章主要介紹了三步解決python PermissionError: [WinError 5]拒絕訪問的情況，具有很好的參考價值，希望對大家有所幫助。一起跟隨小編過來看看吧

問題描述：

1.當你卸載python庫的時候，如：pip uninstall pandas

2.當你想要更新python庫的時候，如：pip install --upgrade pandas

等等… 就會出現(xiàn)PermissionError: [WinError 5] 問題

廢話不多說，分三步完全解決該問題：

第一步：

關閉跟python相關的所有程序，如jupyter，pycharm，Anaconda等等，這一步非常重要?。?！

好了，第一步完成下面開始常規(guī)操作的兩步：

第二步：

賦予用戶對python的“完全控制”的權限，步驟如下：

找到按照python的位置，本文用的是Anaconda，安裝在D盤，位置為：D:\Anaconda3。找到python->右鍵->屬性->安全->點擊“組或用戶名”中的Users->編輯->點擊點擊“組或用戶名”中的Users->把“完全控制”打鉤->應用->OK

第三步：

執(zhí)行完第二步一般就能解決問題。如果還沒解決問題的話，請執(zhí)行第三部，找到你安裝python的文件夾，本人用的是Anaconda3，那么就直接對該文件夾（本人安裝位置為D:\Anaconda3），右鍵屬性，按照第二步的方法執(zhí)行一遍就OK了！

當然，如果你用的pycharm或其他軟件安裝的python，那么就找到你安裝位置的那個文件夾，同理右鍵->屬性，執(zhí)行第二步的方法，搞定！

**總結：**一定要關閉所有跟python相關的程序！

補充知識：jupyter notebook_啟動出錯_ValueError: Please install nodejs 5+ and npm before continuing installation.

錯誤描述：

在啟動jupyter notebook的時候雖然能進入Home，但是后臺還是報錯,如下：

[W 11:03:21.011 NotebookApp] Error loading server extension jupyterlab
 Traceback (most recent call last):
 File "E:\Anaconda3\lib\site-packages\jupyterlab\commands.py", line 321, in
 __init__
 self._run(['node', 'node-version-check.js'], cwd=HERE, quiet=True)
 File "E:\Anaconda3\lib\site-packages\jupyterlab\commands.py", line 1165, i
n _run
 proc = Process(cmd, **kwargs)
 File "E:\Anaconda3\lib\site-packages\jupyterlab\process.py", line 73, in _
_init__
 self.proc = self._create_process(cwd=cwd, env=env)
 File "E:\Anaconda3\lib\site-packages\jupyterlab\process.py", line 131, in
_create_process
 cmd[0] = which(cmd[0], kwargs.get('env'))
 File "E:\Anaconda3\lib\site-packages\jupyterlab\jlpmapp.py", line 59, in w
hich
 raise ValueError(msg)
 ValueError: Please install nodejs 5+ and npm before continuing installation.
 nodejs may be installed using conda or directly from the nodejs website.
 
 During handling of the above exception, another exception occurred:
 
 Traceback (most recent call last):
 File "E:\Anaconda3\lib\site-packages\notebook\notebookapp.py", line 1454,
in init_server_extensions
 func(self)
 File "E:\Anaconda3\lib\site-packages\jupyterlab\extension.py", line 111, i
n load_jupyter_server_extension
 info = get_app_info(app_dir)
 File "E:\Anaconda3\lib\site-packages\jupyterlab\commands.py", line 244, in
 get_app_info
 handler = _AppHandler(app_dir, logger)
 File "E:\Anaconda3\lib\site-packages\jupyterlab\commands.py", line 324, in
 __init__
 raise ValueError(msg)
 ValueError: Please install nodejs 5+ and npm before continuing installation.
 nodejs may be installed using conda or directly from the nodejs website.
[I 11:03:21.336 NotebookApp] Serving notebooks from local directory: C:\Users\Ad
ministrator\Desktop\shuju
[I 11:03:21.338 NotebookApp] 0 active kernels
[I 11:03:21.339 NotebookApp] The Jupyter Notebook is running at:
[I 11:03:21.340 NotebookApp] http://localhost:8888/?token=14172d7abed02b6a0b816a
51fa29f6b44929d2f96b8a1b7f
[I 11:03:21.342 NotebookApp] Use Control-C to stop this server and shut down all
 kernels (twice to skip confirmation).
[C 11:03:21.350 NotebookApp]
 
 Copy/paste this URL into your browser when you connect for the first time,
 to login with a token:
 http://localhost:8888/?token=14172d7abed02b6a0b816a51fa29f6b44929d2f96b8
a1b7f
[I 11:03:21.581 NotebookApp] Accepting one-time-token-authenticated connection f
rom ::1
[I 11:15:21.364 NotebookApp] Interrupted...
[I 11:15:21.366 NotebookApp] Shutting down 0 kernels

解決方案：

因為我的電腦上安裝了Anaconda，所以我打開Anacoda后