Flask-Script: from flask._compat import text_type ModuleNotFoundError: No module named 'flask._compat'

Question

When using Flask-Script I get an error when importing Manager.

I have installed with pip Flask and Flask-Script. How do I fix this?

manage.py

from flask_script import Manager

from main import app

manager = Manager(app)

@manager.command
def hello():

    print ("hello")

if __name__ == "__main__":
    manager.run()

main.py

from flask import Flask

app = Flask(__name__)

Error

(venv) raul@raul-PC:~/Proyectos Python/flask_script$ python3 manage.py hello
Traceback (most recent call last):
  File "manage.py", line 1, in <module>
    from flask_script import Manager
  File "/home/raul/Proyectos Python/flask_script/venv/lib/python3.8/site-packages/flask_script/__init__.py", line 15, in <module>
    from flask._compat import text_type
ModuleNotFoundError: No module named 'flask._compat'

Answer 1

1 - I did installed modules manualy on PyCharm\settings\projet: myapp\python interpreter by selecting my interpreter and installing libs missed like Flask itself, flask-migrate and flask-script.

2 - On this specific error: from flask._compat import text_type
ModuleNotFoundError: No module named 'flask._compat' -

It happened because the python searched on Flask._compat directory and It isn't there, so I changed like on below : (on flask_script/__init__.py)

Where:

from ._compat import text_type on original flask-script file

to :

from flask_script._compat import text_type

Then It works !!