BlueChips is a simple finance tracking application designed for small groups of people with shared expenses. It was designed and developed by groups of students who got tired of the headaches of managing lots of little payments between roommates.

Demo If you want to try out BlueChips, you can go to http://demo.bluechi.ps

Example Scenario Larry lives with Curly and Moe. Larry gets the utility bill, and enters it as an expenditure on their BlueChips site. Everyone shares the utilities, so it’s just an even split. A week later, Moe pays the rent. Curly has a smaller room, so he pays a smaller fraction of the rent. At any time, any user can visit the BlueChips site and see who needs to pay who how much in order to settle the books. After a few months, Moe has paid for a disproportionate amount of stuff, so the other roommates each make a transfer to Moe, and enter the amounts in BlueChips.

Additional Features Support for negative expenses

Uses any authentication mechanism which can set the REMOTE_USER environment variable, including authentication modules supported by Apache, nginx, lighttpd, and others.

Email notifications of changes (optional)

100% test coverage

Installation and Setup Install BlueChips using easy_install: easy_install BlueChips Make a config file as follows: paster make-config BlueChips config.ini Tweak the config file as appropriate and then setup the application: paster setup-app config.ini Host the application behind an authentication layer which sets REMOTE_USER.

Apache Configuration The recommended deployment platform for BlueChips is Apache, mod_wsgi, and any Apache module which provides authentication. Here is an example vhost configuration: <VirtualHost bluechips.example.com:80> ServerName bluechips.example.com WSGIScriptAlias / /var/www/bluechips.wsgi <Directory /var/www> Order deny,allow Allow from all </Directory> <Location /> AuthType Basic AuthName "Example BlueChips Site" AuthUserFile /etc/apache2/passwords Require valid-user </Location> </VirtualHost> The bluechips.wsgi wrapper script looks just like: from paste.deploy import loadapp application = loadapp('config:/var/www/ssl/config.ini')