虚拟环境 Jupyter 实验室上的 ModuleNotFoundError

Question

我创建了一个虚拟环境并安装了 Jupyter notebood 和 jupyter lab

导入熊猫后，我得到ModuleNotFoundError: No module named 'pandas'

用jupyter notebook做同样的操作不会给我一个错误，它在同一个 venv 中运行
我将 pandas 安装到 venv 中，但遇到了同样的错误
导入本机 python 模块工作正常
在上面的空单元格中插入!pip install pandas返回

Requirement already satisfied: pandas in /home/curwin/jupyterlab/venv/lib/python3.8/site-packages (1.1.3)
Requirement already satisfied: pytz>=2017.2 in /home/curwin/jupyterlab/venv/lib/python3.8/site-packages (from pandas) (2020.1)
Requirement already satisfied: python-dateutil>=2.7.3 in /home/curwin/jupyterlab/venv/lib/python3.8/site-packages (from pandas) (2.8.1)
Requirement already satisfied: numpy>=1.15.4 in /home/curwin/jupyterlab/venv/lib/python3.8/site-packages (from pandas) (1.19.2)
Requirement already satisfied: six>=1.5 in /home/curwin/jupyterlab/venv/lib/python3.8/site-packages (from python-dateutil>=2.7.3->pandas) (1.14.0)

Answer 1

我已经在 venv 中安装了一个内核

ipython kernel install --user --name=.venv

并从此内核运行笔记本解决了这个问题