Python error importerror: cannot import name evalcontextfilter, markup, escape from jinja2 solution

Problem description
Use airtest Conduct UI automated testing , take python3.6 Upgrade to python3.9. After the installation of various packages , Run script , Report errors ：ImportError: cannot import name evalcontextfilter, Markup, escape from ‘jinja2‘

from jinja2 introduce evalcontextfilter, Markup, escape.

terms of settlement
Viewed before python3.6 At the time of the jinja2 Version is 3.0.3; Upgrade to python3.9 after ,jinja2 Version is 3.1.x.

So will jinja2 Version down to 3.0.3 after , Problem solving .

Operation steps
（1） Uninstall the installed jinja2: pip uninstall jinja2
（2） install 3.0.3 edition ： pip install jinja2==3.0.3