使用 pip install 时无法在 wsl 中建立新连接答案

【问题标题】：Failed to establish a new connection in wsl when i use pip install使用 pip install 时无法在 wsl 中建立新连接
【发布时间】：2023-01-18 19:17:01
【问题描述】：

我想在 Windows 11 上的 ubuntu 子系统 (WSL) 的虚拟环境中安装 flask-sqlalchemy，使用以下命令：

 pip install flask-sqlalchemy

但是我在控制台窗口中收到错误消息。

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff5c27dff10>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/flask-sqlalchemy/
WARNING: Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff5c2620280>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/flask-sqlalchemy/
WARNING: Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff5c2620520>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/flask-sqlalchemy/
WARNING: Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff5c26206d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/flask-sqlalchemy/
WARNING: Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ff5c2620880>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/flask-sqlalchemy/
ERROR: Could not find a version that satisfies the requirement flask-sqlalchemy (from versions: none)
ERROR: No matching distribution found for flask-sqlalchemy

我认为这与我的 Ubuntu 子系统中的网络连接有关。我尝试在 Standalone Linux 系统上运行，它似乎可以工作。我该如何解决这个问题？

【问题讨论】：

标签： python pip windows-subsystem-for-linux

【解决方案1】：

您可以尝试使用以下命令吗：

pip 安装 Flask-SQLAlchemy

还要确保升级你的 pip 版本：
pip install --upgrade pip
您也可以参考here了解更多详情

【讨论】：