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I wanted a quick, easy way to generate a dependency graph for PHP include statements, but of course I actually did my Google searches for a Python dependency visualizer. The PHP can wait …

Anyway, I found this cool page that had some scripts that can make dependency graphs using Python import statements.

In a nutshell, here's what I did.

1. Made a folder on my Desktop (I have Window 7) called "python_visualizer".
2. Downloaded py2depgraph.py  and depgraph2dot.py to the folder.
3. Downloaded and installed Graphviz.
   • On my system it installed to:
     • C:\Program Files\Graphviz2.26.3
4. Put a copy of one of my Python scripts (renamed to "foo.py") in the "python_visualizer" folder.
5. Opened the command line and did this:

 $ python_visualizer>python py2depgraph.py foo.py | python depgraph2dot.py | "C:\Program Files\Graphviz2.26.3\bin\dot" -T png -o depgraph.png

Now, I did get a little error message as below:

(dot.exe:7244): Pango-WARNING **: couldn't load font "Helvetica Not-Rotated 10", falling back to "Sans Not-Rotated 10", expect ugly output.


but it's no big deal, the PNG still got made … and I don't think it's that ugly!

But you can judge for yourself …

Related Content:

• making a DOT graph for PHP include statements