使用 pip 搜索或安装软件包时，出现以下错误：
pip3 search validate
Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /pypi
Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /pypi
Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /pypi
Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /pypi
Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': …