Python tool that builds a dependency diagram for methods of a class

Question

I'm digging into a huge legacy Python class that has a lot of methods. I eventually break complex ones into smaller pieces so the amount of methods increases even more. I wonder if there is a tool that can scan the Python code and build some kind of dependency diagram for its methods.

I define method x() to be a dependency of method y() if x() is called at least once in y().

I could use such a tool to isolate (if possible) subsets of class methods that have no external dependencies (all their dependencies are methods from the same subset).

I'm planning to move some functionality into other classes and I think that such an approach would help me to decide which parts to extract from the initial huge class.

Edit: I would really like a command-line tool.

Answer 1

Have you tried pydev? It's a python extension for eclipse. I believe it allows you to use the "call hierarchy" feature of Eclipse to view a call graph for a given method. It's not quite what you want but maybe it's enough to get started.

Answer 2

Have you looked at Snakefood yet? It looks like it's exactly what you're looking for.

Answer 3

i was confuse in this question too,i have found a search helper help me to find the call hierarchy in another way. not very good but better than donot have. sorry about my english.

ps.IDE eclipse+pydev