d2l包ModuleNotFoundError: No module named 'decorator'

回答: 根据引用\[1\]，如果没有安装sqlit-devel，Python3.8编译不会报错，但在运行jupyter时会报错ModuleNotFoundError: No module named 'sqlite'。而根据引用\[2\]，pip是Python的包管理工具，它将包安装在特定的位置。对于问题中提到的d2l包的ModuleNotFoundError: No module named 'decorator'错误，可能是因为缺少了decorator模块。你可以尝试升级pip，如引用\[3\]所示，使用命令pip install --upgrade pip来升级pip。然后再尝试安装d2l包，看看问题是否解决。
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