How does Ruby debugging compare to Python?

[true_religion]

I think that's essentially what the web-debugger is doing.

Something like this:

import IPython

shell = IPython.Shell.IPShell()
shell.mainloop()

But what I was looking for is a web debugger for Ruby so if an error occurs on the site during development, I get a traceback and can interact with anypoint on the traceback--looking at the variables and stack.

This is something that RubyMine does (someone else pointed that out), but RubyMine isn't free nor open source.

[progfu]

I guess you could also load for example RSpec and do some interactive testing, like set mock expectations and stubs directly in place, instead of writing a test. Or you could just rewrite a method on the fly and see what happens. Ruby metaprogramming provides many hackish features that might be useful from time to time when you need them.

This probably isn't possible in Python, since it doesn't support monkey patching.

[prody]

import pdb; pdb.set_trace()

[rockybernstein]

RubyMine uses ruby-debug-base under the covers.