Use `venv` to create a virtual environment. Run `python -m venv myenv` and activate it to isolate project dependencies.

Creating a virtual environment in Python is essential for managing dependencies and ensuring that different projects do not interfere with each other. Python's built-in venv module makes it easy to create isolated environments. Here’s how you can create and activate a virtual environment:

Step 1: Create a Virtual Environment

Run the following command in your terminal or command prompt:

python -m venv myenv

This command creates a directory named myenv (you can choose any name) that contains a copy of the Python interpreter and a local pip installation.

Step 2: Activate the Virtual Environment

To activate the virtual environment, use the following command:

• On Windows:

myenv\Scripts\activate

• On macOS/Linux:

source myenv/bin/activate

After activation, your command prompt will typically show the name of the virtual environment. Any packages you install using pip will now be isolated to this environment.

Step 3: Install Packages

You can now install packages without affecting your global Python installation:

pip install package_name

Step 4: Deactivate the Virtual Environment

When you’re done, you can deactivate the environment by running:

deactivate

Using virtual environments is a best practice in Python development, ensuring that projects have the correct dependencies without conflicts.