xdot.py 0.5 发布，图形互动查看器

xdot.py是一个图形可交互查看器，采用Graphviz的 dot 语言开发 It internally uses the graphviz's xdot output format as an intermediate format and PyGTK and Cairo for rendering. It can be used either as a standalone application from command line or as a library embedded in a Python application。

Release Notes: Several bugfixes and enhancements.