["python","python-2.7","python-venv"]
how can I find out which python virtual environment I am using?

I have several virtual environment in my computer and sometimes I am in doubt about which python virtual environment I am using. Is there an easy way to find out which virtual environment I am connected to?
You can use sys.prefix to determine which virtualenv you're in. import sys print(sys.prefix) from the sys docs A string giving the site-specific directory prefix where the platform independent Python files are installed