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解决pip install报错:Cannot connect to proxy问题

[db:来源] 2023-05-11python5502

这篇文章主要介绍了解决pip install报错:Cannot connect to proxy问题，具有很好的参考价值，希望对大家有所帮助。如有错误或未考虑完全的地方，望不吝赐教

pip install *** :Cannot connect to proxy

在使用pip install 安装任何新的包都会出现下面错误：

PS C:\WINDOWS\system32> pip install django
Looking in indexes: http://pypi.douban.com/simple
Collecting django
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.',
NewConnectionError('<pip._vendor.urllib3.connection.HTTPConnection object at 0x000002574165FF60>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒尽，无法连接。',))':
http://pypi.douban.com/simple/django/

Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.',
NewConnectionError('<pip._vendor.urllib3.connection.HTTPConnection object at 0x000002574165F128>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒尽，无法连接。',))':
http://pypi.douban.com/simple/django/

Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.',
NewConnectionError('<pip._vendor.urllib3.connection.HTTPConnection object at 0x0000025741663208>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒尽，无法连接。',))':
http://pypi.douban.com/simple/django/

Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.',
NewConnectionError('<pip._vendor.urllib3.connection.HTTPConnection object at 0x0000025741663358>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒尽，无法连接。',))':
http://pypi.douban.com/simple/django/

Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.',
NewConnectionError('<pip._vendor.urllib3.connection.HTTPConnection object at 0x00000257416630F0>: Failed to establish a new connection: [WinError 10061] 由于目标计算机积极拒尽，无法连接。',))':
http://pypi.douban.com/simple/django/

Could not find a version that satisfies the requirement django (from versions: )
No matching distribution found for django

出现这样的问题的原因是代理出现了问题，安装了蓝灯出现的。只要关闭蓝灯， pip install 就会提示上面的bug。

解决办法

按Win+R快捷键，输进regedit，打开注册表编辑器找到HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Internet Settings分支，把它下面以 Proxy 打头的键值对（如ProxyEnable，ProxyOverride，ProxyServer等）全部删除。

这样再次 pip install 就可以了。

python requests proxies 错误

ProxyError: HTTPSConnectionPool(host='www.zhihu.com', port=443): Max retries exceeded with url: / (Caused by ProxyError('Cannot connect to proxy.', NewConnectionError('<requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x03CEFB50>: Failed to establish a new connection: [Errno 10060] ',)))

SSLError: [SSL: UNKNOWN_PROTOCOL] unknown protocol (_ssl.c:590)

ConnectionError: ('Connection aborted.', BadStatusLine("''",))

假如是初次使用代理，以上三种错误出现的原因基本是1.端口错误2.代理类型不准确。

明确的一点是访问https站点,要用https类型的代理。http同理。