How to Set Up a Virtual Environment in Python?

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Setting up a virtual environment in Python is a useful way to manage different versions of packages and dependencies for different projects on the same machine. Here are the steps to set up a virtual environment in Python:

  1. Install virtualenv: If you don’t already have it installed, install virtualenv using pip by running the following command in your terminal:pip install virtualenv
  2. Create a new virtual environment: Navigate to the directory where you want to create your virtual environment in the terminal, and run the following command:virtualenv venvThis will create a new directory called venv in your current directory, which will contain the files for your virtual environment.
  3. Activate the virtual environment: To activate the virtual environment, run the following command:
    • For Windows: venv\Scripts\activate
    • For macOS or Linux: source venv/bin/activate
    Your terminal prompt should now change to reflect the name of your virtual environment, indicating that it is active.
  4. Install packages and dependencies: Once your virtual environment is active, you can install packages and dependencies as usual using pip. For example, to install the requests package, run:pip install requestsThis will install the requests package only in your virtual environment, rather than globally on your machine.
  5. Deactivate the virtual environment: When you’re finished working in your virtual environment, you can deactivate it by running the following command:deactivateThis will return your terminal prompt to its original state, indicating that the virtual environment is no longer active.

That’s it! You can now create and use different virtual environments for different projects, each with its own set of packages and dependencies.

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