How to Check if Your Python Code is Running in a Virtual Environment?

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To check if your Python code is running in a virtual environment, you can inspect the value of the VIRTUAL_ENV environment variable. This variable is typically set when a virtual environment is activated and contains the path to the virtual environment’s directory. By checking if this variable exists and is non-empty, you can determine if your code is running in a virtual environment.

Here’s an example code snippet that demonstrates how to check if Python code is running in a virtual environment:

import os

def check_virtual_environment():
    if os.getenv('VIRTUAL_ENV'):
        print("Code is running in a virtual environment.")
    else:
        print("Code is not running in a virtual environment.")

# Example usage
check_virtual_environment()

In this example, the check_virtual_environment function uses os.getenv('VIRTUAL_ENV') to retrieve the value of the VIRTUAL_ENV environment variable. If the variable exists and is non-empty, it indicates that the code is running in a virtual environment.

If the code is running in a virtual environment, the message “Code is running in a virtual environment” is printed. Otherwise, the message “Code is not running in a virtual environment” is printed.

Note that this method relies on the presence of the VIRTUAL_ENV environment variable, which is commonly used in virtual environment activation scripts. However, it may not be set in all virtual environment tools or activation methods.

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