GraphViz package is a set of tools to describe, automatically layout and manipulate graphs, which is of great significance in connection and relationship analysis and illustration. The core module of GraphViz is the layout and render engines which generate neat and elegant visualization of graph in various common formats from a descriptive small language (the graph file language or the DOT language). This post will represent a brief introduction of the DOT language and show some applications that utilize the power of GraphViz.

Visualization of data or graph can be achieved by a variety of means in Python. This post list configuration for some simple visualizations. Before introduction of some visualization package, I’ll list some procedures for configure and launch the Jupyter notebook, which is a convenient environment for testing Python code.