Inspecting source code with vim, ctags and other tools

Question

There is plenty of information about how to browse source code with vim/ctags, like jumping to a tag, navigating tag stack, searching for a tag match, etc.

However, I can't find information about how to actually inspect source code and its structure, similar to something like "source browser" tool in some IDEs.

The following is what I want to be able to do with Python source code using vim, though the same may be equally true for some other languages:

1. List all members of the current file (module), i.e. top level classes, functions and/or variables defined in the module.
2. List all methods and attributes of a given class.
3. Jump to a member within a given class, i.e. something like :tag ClassName.my_method.
4. List package members/hierarchy.

Answer 1

Some of what you want (the "listing" part, at least) can be done with TagList or TagBar but I'm afraid you are confusing Vim with an IDE.

Answer 2

Have you looked at Rope?

http://rope.sourceforge.net/ropevim.html

Features

Rope refactorings:

• Rename anything!
• Extract method/local variable
• Move class/function/module/package/method
• Inline method/local variable/parameter
• Restructuring (like converting "${a}.f(${b})" to "${b}.g(${a})" where "a: type=mymod.A")
• Introduce factory
• Change method signature
• Transform module to package
• Encapsulate field
• Replace method with method object
• And a few others...

Rope can:

• Extract similar statements in extract refactorings
• Fix imports when needed
• Preview refactorings
• Undo/redo refactorings
• Interrupt refactorings
• Perform cross-project refactorings
• Handle basic implicit interfaces in rename and change signature
• Support Mercurial, GIT, Darcs and SVN in refactorings

Rope can also help IDE's with:

• Auto-completion
• Finding definition location
• Getting pydoc
• Finding occurrences
• Organizing imports (removing unused and duplicate imports and sorting them)
• Generating python elements

http://rope.sourceforge.net/index.html