YakTrack is a simple but reasonably effective issue-tracking system written in Python using the current XML libraries. It uses simple XML DTDs to define issue formats, and stores each issue as a separate XML file, making for a very simple database structure. A command-line interface is available which either generates a series of textual prompts or shells out to an external editor to edit or submit new issues, query the database, etc. An email gateway and a CGI interface are also available.
etrace makes use of the -finstrument-functions feature from gcc to log all function calls and display them as a call tree during run-time. The call tree can also be logged to a file. This lets you follow a program's execution path path without using a debugger. etrace consists of 80 lines of Python and 100 lines of C code.
Roundup is an issue-tracking system that is simple to use and simple to install. It has command-line, Web, and email interfaces. It manages a number of issues (with flexible properties such as "description", "priority", and so on) and provides the ability to submit new issues, find and edit existing issues, and discuss issues with other participants. The system facilitates communication among the participants by managing discussions and notifying interested parties when issues are edited.
The P4DTI connects your defect tracking system to the Perforce configuration management system, so that you don't have to switch between them and enter duplicate information about your work. It also links changes made in Perforce with defect tracker issues, making it easy to find out why a change was made, find the work that was done to resolve an issue, or generate reports relating issues to files or codelines.