ImportError: IProgress not found. Please update jupyter and ipywidgets.

ImportError: IProgress not found. Please update jupyter and ipywidgets. 
See https://ipywidgets.readthedocs.io/en/stable/user_install.html

一般是jupyter的版本有些低了,可能是你默认的环境,所以重装以下就好了

# 可以先用你的环境 conda activate xx
# 卸载jupyter:
pip uninstall jupyter
# 安装jupyter
pip install jupyter

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