Find full path of the Python interpreter?

Question

How do I find the full path of the currently running Python interpreter from within the currently executing Python script?

Answer 1

Just noting a different way of questionable usefulness, using os.environ:

import os
python_executable_path = os.environ['_']

e.g.

$ python -c "import os; print(os.environ['_'])"
/usr/bin/python