Python警告:正在重试(Retry(total=4，connect=None，read=None，redirect=None，status=None))

Question

我在试着做pip install --upgrade pip并保持

获取此错误：

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', NewConnection
Error('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x0000026F50B448C8>: Failed to establish a new connection: [WinError 10061] No connection could be made
 because the target machine actively refused it'))': /simple/pytest/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', NewConnection
Error('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x0000026F50B59148>: Failed to establish a new connection: [WinError 10061] No connection could be made
 because the target machine actively refused it'))': /simple/pytest/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', NewConnection
Error('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x0000026F50B596C8>: Failed to establish a new connection: [WinError 10061] No connection could be made
 because the target machine actively refused it'))': /simple/pytest/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', NewConnection
Error('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x0000026F50B595C8>: Failed to establish a new connection: [WinError 10061] No connection could be made
 because the target machine actively refused it'))': /simple/pytest/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProxyError('Cannot connect to proxy.', NewConnection
Error('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x0000026F50B5F2C8>: Failed to establish a new connection: [WinError 10061] No connection could be made
 because the target machine actively refused it'))': /simple/pytest/
ERROR: Could not find a version that satisfies the requirement pytest
ERROR: No matching distribution found for pytest

另外，由于这个错误，我不能安装任何新的包。

我尝试重新安装Pycharm，但没有成功。

我在网上尝试了一些其他建议的解决方案-仍然没有成功。

我知道它与代理有关，但我不熟悉它，任何人？

Answer 1

尝试将构建命令附加到--network=host

例如：docker build -t cointainer_name . --network=host

If you use the host network mode for a container, that container’s network stack is not isolated from the 
Docker host (the container shares the host’s networking namespace), and the container does not 
get its own IP-address allocated. 
For instance, if you run a container which binds to port 80 and you use host 
networking, the container’s application is available on port 80 on the host’s IP address.

请查看here了解更多详细信息

Answer 2

首先，重新安装所有的python。其次，一旦安装了python，我就找到了host文件，并取消了host部分的注释。通常，windows中的路径位于C:\Windows\System32\drivers\etc

取消对此部分的注释：

本地主机名称解析在DNS本身中处理。

127.0.0.1       localhost
::1             localhost

希望它能起作用！干杯!