Why Am I Still Getting 'ModuleNotFoundError' in VS Code Even Though I've Installed It?

ModuleNotFoundError in VS Code Despite Installed Module

When encountering a "ModuleNotFoundError" in VS Code, despite installing the module, several factors could contribute to this issue:

Updating VS Code

It is important to ensure that the Visual Studio Code (VS Code) IDE is up-to-date. Restarting or reloading VS Code may resolve the issue.

Virtual Environment Isolation

Check if the installed module is located within the virtual environment used by your Python code. Create and activate a virtual environment using:

python3 -m venv env
source env/bin/activate

Proper Pip Installation

Use the recommended pip module installation method:

python3 -m pip install new_module

Replace "new_module" with the name of the problematic module.

Virtual Environment Management

In newer Python distributions like Debian 12, it is crucial to use virtual environments for managing Python packages. Create a new environment for each project:

python3 -m venv env

Activate the environment by running:

source env/bin/activate

Python venv Module Installation

Ensure the python venv module is installed on your system if you intend to use it. For Debian-based systems, run:

$ sudo apt install python3-venv

Restarting VS Code

After implementing these steps, restart VS Code by pressing Ctrl Shift P, and selecting "Reload window." VS Code should now recognize the newly installed module and provide autocompletion features.

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