How do you see the return value from a function in the Python debugger, without an intermediate?
debugging, python
Solution
You can look into a hidden `__return__` local variable.
If I would forget it's exact name, I explore it by this:
(Pdb) sorted(locals().keys())
['__return__', 'xyz', ...]
EDIT: Related later answer with example of debugging with `__return__`
Problem
PDB (and other Python debuggers) have a simple way of viewing the value of any current variable, just by typing it in. However, sometimes I work with libraries that don't store their return values in intermediate variables. Here's an example function: ``` def do_stuff(*args, **kwds): return f(*args, **kwds) ``` After I return from f, how do I see the return value? I could rewrite libraries after I download them to have an intermediate: ``` def do_stuff(*args, **kwds): r = f(*args, **kwds) return r ``` but it seems like there should be a better way.