Flask ImportError: No Module Named Flask in visual Studio Code Solution

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Give this command on terminal

Create a new virtualenv with:

virtualenv flask
cd flask
source bin/activate
pip install flask

Run it then:

python hello.py

Or

FLASK_APP=hello.py flask run

For python 3 use

pip3 install flask

For more Solution : https://stackoverflow.com/questions/31252791/flask-importerror-no-module-named-flask