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A great tool for understanding source code is Source Trail. Supports parsing of C/C++, Python and Java currently. I love tools that help understand a large code base.

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I take it you've used Source Trail? Are there any operations you particularly like using it for? Are there any you wish it could do, but it wasn't able to?

I built https://twitter.com/PredragGruevski/status/13447256045208780... just for fun as an exploration of this space, and I'm wondering where the limits are :)

I have used it to graph large python projects and c++ projects. It is great for visualizing the classes and relationship of classes and functions along with references to all the program elements.

The hardest part for me has been setting up the list of files and folders to scan for the project and trying to eliminate errors. Fortunately you still get useful data depending on the errors.

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