import flask could not be resolved from source pylance

1. Firstly Create a Virtual Environment on your terminal
2. then install your flask by pip install flask
3. after install CTRL+SHIFT+P
4. Search Python Interpreter
5. Select Your virtual Environment

Problem Will bi fixed. I have also faced same problem. but I have fixed it following this procedure

When I did not install the module “flask“, I ran into the problem you described:

The reason is that the module “flask” is not installed in the Python environment we currently use in VSCode.

Please use the shortcut key Ctrl+Shift+` to open a new VSCode terminal, it will automatically enter the currently selected environment, and then use the command “pip show flask” to check the installation location of the module “flask”:

If it still shows that the module could not be resolved, it is recommended that you reinstall the module “flask“.

In VS Code, Go to “Python: Select interpreter” by Ctrl + Shift + P.
Choose python interpreter (‘base’: conda)

In case you are using a virtual environment;

1. Create a virtual environment.

   python3.9 -m venv --without-pip virtual

2. Activate the virtual environment.

   source virtual/bin/activate

3. Install the pip for the created virtual environment.

   curl https://bootstrap.pypa.io/get-pip.py | python

4. Install flask into the virtual env.

   pip install flask

5. Create the python file. For your case,

   touch server.py

6. Open file and import the module

7. If it underlines again, install pip again while the .py file is still open.

   pip install flask