pip install *** :Cannot connect to proxy

在使用pip install 安裝任何新的包都會(huì)出現(xiàn)下面錯(cuò)誤：

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] 由于目標(biāo)計(jì)算機(jī)積極拒絕，無(wú)法連接。',))': 
  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] 由于目標(biāo)計(jì)算機(jī)積極拒絕，無(wú)法連接。',))': 
  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] 由于目標(biāo)計(jì)算機(jī)積極拒絕，無(wú)法連接。',))': 
  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] 由于目標(biāo)計(jì)算機(jī)積極拒絕，無(wú)法連接。',))': 
  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] 由于目標(biāo)計(jì)算機(jī)積極拒絕，無(wú)法連接。',))': 
  http://pypi.douban.com/simple/django/
  
  Could not find a version that satisfies the requirement django (from versions: )
No matching distribution found for django

出現(xiàn)這樣的問(wèn)題的原因是代理出現(xiàn)了問(wèn)題，安裝了藍(lán)燈出現(xiàn)的。只要關(guān)閉藍(lán)燈， pip install 就會(huì)提示上面的bug。

解決辦法

按Win+R快捷鍵，輸入regedit，打開(kāi)注冊(cè)表編輯器找到HKEY_CURRENT_USER/Software/Microsoft/Windows/CurrentVersion/Internet Settings分支，把它下面以 Proxy 打頭的鍵值對(duì)（如ProxyEnable，ProxyOverride，ProxyServer等）全部刪除。

這樣再次 pip install 就可以了。

python requests proxies 錯(cuò)誤

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("''",))

如果是初次使用代理，以上三種錯(cuò)誤出現(xiàn)的原因基本是1.端口錯(cuò)誤2.代理類(lèi)型不正確。

明確的一點(diǎn)是訪問(wèn)https站點(diǎn),要用https類(lèi)型的代理。http同理。

如圖

西刺代理分的比較明確

第一次用的時(shí)候就是因?yàn)檫@個(gè)浪費(fèi)我半天時(shí)間。。

總結(jié)

以上為個(gè)人經(jīng)驗(yàn)，希望能給大家一個(gè)參考，也希望大家多多支持腳本之家。