python numpy库安装winerror5_pip报“PermissionError: [WinError 5] 拒绝访问。”解决方案

今天安装spacy这个NLP工具，使用环境是anaconda3，默认安装在C盘了。结果使用pip安装Spacy，出现如下提示：Exception:

Traceback (most recent call last):

File "C:\Users\w\Anaconda3\lib\shutil.py", line 387, in _rmtree_unsafe

os.unlink(fullname)

PermissionError: [WinError 5] 拒绝访问。: 'C:\\Users\\w\\AppData\\Local\\Temp\\pip-rfrclcoc-uninstall\\users\\w\\anaconda3\\lib\\site-packages\\msgpack\\_packer.cp36-win_amd64.pyd'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):

File "C:\Users\w\Anaconda3\lib\site-packages\pip\basecommand.py", line 215, in main

status = self.run(options, args)

File "C:\Users\w\Anaconda3\lib\site-packages\pip\commands\install.py", line 342, in run

prefix=options.prefix_path,

File "C:\Users\w\Anaconda3\lib\site-packages\pip\req\req_set.py", line 795, in install

requirement.commit_uninstall()

File "C:\Users\w\Anaconda3\lib\site-packages\pip\req\req_install.py", line 767, in commit_uninstall

self.uninstalled.commit()

File "C:\Users\w\Anaconda3\lib\site-packages\pip\req\req_uninstall.py", line 142, in commit

rmtree(self.save_dir)

File "C:\Users\w\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 49, in wrapped_f

return Retrying(*dargs, **dkw).call(f, *args, **kw)

File "C:\Users\w\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 212, in call

raise attempt.get()

File "C:\Users\w\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 247, in get

six.reraise(self.value[0], self.value[1], self.value[2])

File "C:\Users\w\Anaconda3\lib\site-packages\six.py", line 686, in reraise

File "C:\Users\w\Anaconda3\lib\site-packages\pip\_vendor\retrying.py", line 200, in call

attempt = Attempt(fn(*args, **kwargs), attempt_number, False)

File "C:\Users\w\Anaconda3\lib\site-packages\pip\utils\__init__.py", line 102, in rmtree

οnerrοr=rmtree_errorhandler)

File "C:\Users\w\Anaconda3\lib\shutil.py", line 494, in rmtree

return _rmtree_unsafe(path, onerror)

File "C:\Users\w\Anaconda3\lib\shutil.py", line 384, in _rmtree_unsafe

_rmtree_unsafe(fullname, onerror)

File "C:\Users\w\Anaconda3\lib\shutil.py", line 384, in _rmtree_unsafe

_rmtree_unsafe(fullname, onerror)

File "C:\Users\w\Anaconda3\lib\shutil.py", line 384, in _rmtree_unsafe

_rmtree_unsafe(fullname, onerror)

[Previous line repeated 2 more times]

File "C:\Users\w\Anaconda3\lib\shutil.py", line 389, in _rmtree_unsafe

onerror(os.unlink, fullname, sys.exc_info())

File "C:\Users\w\Anaconda3\lib\site-packages\pip\utils\__init__.py", line 114, in rmtree_errorhandler

func(path)

PermissionError: [WinError 5] 拒绝访问。: 'C:\\Users\\w\\AppData\\Local\\Temp\\pip-rfrclcoc-uninstall\\users\\w\\anaconda3\\lib\\site-packages\\msgpack\\_packer.cp36-win_amd64.pyd'

之前安装也出现过这个拒绝访问的问题，于是百度了一下，发现开着Jupyter notebook会有一些插件例如numpy在后台运行，干扰安装。于是关闭了运行的python，再用pip，完美安装了spacy和附属语言包。

如果使用conda来安装Spacy，会出现安装不成功的情况。提示：ERROR conda.core.link:_execute_actions(337): An error occurred while installing package 'conda-forge::tqdm-4.19.5-py_0'.

CondaError: Cannot link a source that does not exist. C:\Users\w\Anaconda3\Scripts\conda.exe

Running `conda clean --packages` may resolve your problem.

这时候就需要先升级conda的安装功能。不知道为什么，需要通过升级pip来实现conda install pip

升级完就可以用conda安装了。

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python numpy库安装winerror5_pip报“PermissionError: [WinError 5] 拒绝访问。”解决方案

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