JCARD2 is a simple cross-platform, multi-user, Web-based contact management application. It is entirely self-contained except for the Python runtime and (if you want SSL support) the Python OpenSSL libraries.
Open source project that offer summary and download services on this page is a project that carry out their development work on other open source development sites. Their work is linked to this page via a feature called OFI, and their work is not carried out here on OSDN site.