SoS Jupyter Notebook下R kernel无法运行问题求助

• 普通Jupyter Notebook使用R kernel（ir）无异常，但在SoS Notebook中执行任何R命令均报错
• 错误信息：

  cannot import name 'Sequence' from 'collections' (/usr/lib/python3.10/collections/init.py)

• 控制台警告：

  WARNING: Failed to locate subkernel R with kernel "ir" and language "R": cannot import name 'Sequence' from 'collections' (/usr/lib/python3.10/collections/init.py)

环境安装信息 #

$ jupyter kernelspec list
Available kernels:
  bash       /home/leoca/.local/share/jupyter/kernels/bash
  ir         /home/leoca/.local/share/jupyter/kernels/ir
  octave     /home/leoca/.local/share/jupyter/kernels/octave
  python3    /home/leoca/.local/share/jupyter/kernels/python3
  sos        /home/leoca/.local/share/jupyter/kernels/sos

$ pip list | grep sos
sos                               0.23.4
sos-bash                          0.20.0
sos-notebook                      0.23.4
sos-r                             0.19.6

解决方案 #

这个问题是Python 3.10版本的兼容性问题：Python 3.10将collections.Sequence迁移到了collections.abc模块，而你当前安装的sos-r版本（0.19.6）未适配这一变化。

1. 优先升级sos-r到兼容版本
   执行以下命令升级sos-r，新版本已修复Python 3.10的适配问题：

   pip install --upgrade sos-r
   

2. 临时兼容修复（无法升级时使用）
   找到sos-r包中导入Sequence的Python文件，将原有导入代码：

   from collections import Sequence
   

   修改为兼容多版本的代码：

   try:
       from collections.abc import Sequence
   except ImportError:
       from collections import Sequence
   

内容的提问来源于stack exchange，提问作者LEo