我在工作PC（企业代理）上，无法使用pip install安装任何东西。
我尝试了以下方法：
pip install QuantLib-Python
pip install --proxy 'webproxy.abc.123.nsroot.net:8080' QuantLib-Python
pip install --proxy "user:pass@webproxy.abc.123.nsroot.net:8080" QuantLib-
Python
无论图书馆我总是收到此消息。我正在使用Python 3.7.3
Collecting QuantLib-Python
Note: you may need to restart the kernel to use updated packages.
Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.VerifiedHTTPSConnection object at 0x0000000002BEAFD0>: Failed to establish a new connection: [Errno 11004] getaddrinfo failed')': /simple/quantlib-python/
Retrying
No matching distribution found for QuantLib-Python
在家用PC上，我运行了pip install QuantLib-Python和python版本，它运行良好。
请帮助！