Apple ships with a number of utilities installed that require Python, like smtpd.py.
It contains the following shebang:
#!/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -R
Which continues to work since it's a system framework.I see it now, but it uses a shebang that points to the system framework python:
#!/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/Contents/MacOS/Python -R