Installation
To "install" this script, simply download it and run it:
python z3project_starter.py
answering all the questions.
I have found it most convenient to place this script in my Z3_INSTANCE/lib/python directory.
Please pay attention to the output at the end of the script, particularly this bit:
Don't forget to copy mynewsite/etc/mynewsite-configure.zcml into your z3 instance etc/package-includes directory.