because the virtual environment is often stored in a central cache rather than the project folder. Core Solutions Visual Studio Code Pylance (report Missing Imports )

You can prevent this issue entirely by forcing Poetry to create a .venv folder within your project directory, which VS Code often detects automatically. Run: poetry config virtualenvs.in-project true Re-install your dependencies: poetry install

Pylance often defaults to a global or "recommended" interpreter that doesn't have your project's dependencies installed. Command Palette Ctrl+Shift+P on Windows/Linux or Cmd+Shift+P on macOS). Type and select "Python: Select Interpreter"

Recreate the virtual environment:

If you are tired of fighting cached virtual env paths, you can force Poetry to create the .venv folder inside your project root. This is the most Pylance-friendly approach.

def main(): np.array([1, 2, 3]) some_function()

If you already initialized your environment, you need to force Poetry to recreate it under the new configuration:

Now, delete the old environment and create a new one:

If you are a Python developer using Visual Studio Code, you have likely experienced a unique flavor of frustration: your terminal runs the code perfectly, poetry show --tree lists all your dependencies, yet your editor is littered with angry yellow squiggles. Hovering over the import reveals the dreaded message:

Note: This works best if you’ve used virtualenvs.in-project true (Solution 2) or if you manually symlink Poetry’s cache venv to .venv .

Find and delete the old environment by running poetry env remove --all . Run poetry install to trigger a fresh installation.