---

一、现象

WIN + R 后，按下cmd，启用jupyter notebook

抛出如下错误：
File “D:\Anaconda3\Scripts\jupyter-notebook-script.py”, line 6, in
from notebook.notebookapp import main
File “D:\Anaconda3\lib\site-packages\notebook\notebookapp.py”, line 41, in
from jinja2 import Environment, FileSystemLoader
File “D:\Anaconda3\lib\site-packages\jinja2_init_.py”, line 33, in
from jinja2.environment import Environment, Template
File “D:\Anaconda3\lib\site-packages\jinja2\environment.py”, line 15, in
from jinja2 import nodes
File “D:\Anaconda3\lib\site-packages\jinja2\nodes.py”, line 19, in
from jinja2.utils import Markup
File “D:\Anaconda3\lib\site-packages\jinja2\utils.py”, line 647, in
from markupsafe import Markup, escape, soft_unicode
ImportError: cannot import name ‘soft_unicode’ from ‘markupsafe’ (D:\Anaconda3\lib\site-packages\markupsafe_init_.py)

(base) C:\Users\Administrator>pip install -U markupsafe
Requirement already up-to-date: markupsafe in d:\anaconda3\lib\site-packages (2.1.5)

(base) C:\Users\Administrator>jupyter notebook
Traceback (most recent call last):
File “D:\Anaconda3\Scripts\jupyter-notebook-script.py”, line 6, in
from notebook.notebookapp import main
File “D:\Anaconda3\lib\site-packages\notebook\notebookapp.py”, line 41, in
from jinja2 import Environment, FileSystemLoader
File “D:\Anaconda3\lib\site-packages\jinja2_init_.py”, line 33, in
from jinja2.environment import Environment, Template
File “D:\Anaconda3\lib\site-packages\jinja2\environment.py”, line 15, in
from jinja2 import nodes
File “D:\Anaconda3\lib\site-packages\jinja2\nodes.py”, line 19, in
from jinja2.utils import Markup
File “D:\Anaconda3\lib\site-packages\jinja2\utils.py”, line 647, in
from markupsafe import Markup, escape, soft_unicode
ImportError: cannot import name ‘soft_unicode’ from ‘markupsafe’ (D:\Anaconda3\lib\site-packages\markupsafe_init_.py)

二、解决方案

1.先查看版本号：pip show markupsafe

2.降低版本号：pip install --force-reinstall MarkupSafe==2.0.1

3.再次启用成功：jupyter notebook

---

解决方案：网上各种资料尝试一番