Getting Error: 'No module named flask' in VSCode even when I have installed flask

Question

I want to debug an application using Python and Flask in VSCode. I have installed Flask and the app runs perfectly fine through cmd. But, when I try to debug it through VSCode, it gives the following error:

cd 'c:\Users\Aditi\CleanHandymanApp'; 
${env:FLASK_APP}='NewApp'; ${env:PYTHONIOENCODING}='UTF-8'; 
${env:PYTHONUNBUFFERED}='1'; & 'C:\Users\Aditi\envs\CleanHandymanApp\Scripts\python.exe' 
'c:\Users\Aditi\.vscode\extensions\ms-python.python-2018.10.1\pythonFiles\experimental\ptvsd_launcher.py' '--client' '--host' 
'localhost' '--port' '63143' '-m' 'flask' 'run' '--no-debugger' '--no-reload'
No module named flask

Can you please help me.

Answer 1

This error message can occur if you installed the python3 version of flask but Visual Studio Code tries to run your project with python2.

Make sure to select the correct version of python in the editor. This can be done by running the command Python: Select Interpreter from the Command Palette (Ctrl+Shift+P).