Web2py isn't installed, per se. The framework itself is a zip file that gets unzipped on your local machine. Then you use web2py's great wizards to create new applications, or create them manually within your project's applications directory. 

gen-web2py-project.sh generates a new web2py project in your projects directory (defined by virtualenvwrapper's WORKON_HOME), the current directory, or a directory of your choice. 

1. No manual downloading.
2. No manual unzipping.
3. Generates a "best practice" folder structure.
4. Generates a "best practice" .gitignore file.

Use

To create a new web2py project named awesomeapp: