ImportError: cannot import name 'escape' from 'jinja2'

[skounis]

Describe the bug, issue or concern

make test gives

 ImportError: cannot import name 'escape' from 'jinja2'

More detailed:

python -m pytest -vv --cov=app test_app.py
============================================================================================================ test session starts =============================================================================================================
platform linux -- Python 3.8.10, pytest-6.2.2, py-1.11.0, pluggy-0.13.1 -- /home/skounis/.kube-hello/bin/python
cachedir: .pytest_cache
rootdir: /home/skounis/python/cdf-kubernetes-hello-world-python-flask
plugins: cov-2.11.1
collected 0 items / 1 error                                                                                                                                                                                                                  

=================================================================================================================== ERRORS ===================================================================================================================
________________________________________________________________________________________________________ ERROR collecting test_app.py ________________________________________________________________________________________________________
ImportError while importing test module '/home/skounis/python/cdf-kubernetes-hello-world-python-flask/test_app.py'.
Hint: make sure your test modules/packages have valid Python names.
Traceback:
../../.kube-hello/lib/python3.8/site-packages/_pytest/python.py:578: in _importtestmodule
    mod = import_path(self.fspath, mode=importmode)
../../.kube-hello/lib/python3.8/site-packages/_pytest/pathlib.py:531: in import_path
    importlib.import_module(module_name)
/usr/lib/python3.8/importlib/__init__.py:127: in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
<frozen importlib._bootstrap>:1014: in _gcd_import
    ???
<frozen importlib._bootstrap>:991: in _find_and_load
    ???
<frozen importlib._bootstrap>:975: in _find_and_load_unlocked
    ???
<frozen importlib._bootstrap>:671: in _load_unlocked
    ???
../../.kube-hello/lib/python3.8/site-packages/_pytest/assertion/rewrite.py:170: in exec_module
    exec(co, module.__dict__)
test_app.py:1: in <module>
    from app import change
app.py:1: in <module>
    from flask import Flask
../../.kube-hello/lib/python3.8/site-packages/flask/__init__.py:14: in <module>
    from jinja2 import escape
E   ImportError: cannot import name 'escape' from 'jinja2' (/home/skounis/.kube-hello/lib/python3.8/site-packages/jinja2/__init__.py)

---------- coverage: platform linux, python 3.8.10-final-0 -----------
Name     Stmts   Miss  Cover
----------------------------
app.py      29     28     3%
----------------------------
TOTAL       29     28     3%

========================================================================================================== short test summary info ===========================================================================================================
ERROR test_app.py
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Interrupted: 1 error during collection !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
============================================================================================================== 1 error in 0.08s ==============================================================================================================
make: *** [Makefile:10: test] Error 2

[skounis]

https://stackoverflow.com/a/71735103/7248789