ipython-like tab completion of commands in the interpreter?

```
Esp. w/o documentation, it'd be great to not have to dive into pynguin.py


What version of the product are you using? On what operating system?
HEAD, Ubuntu 9.10
```

Original issue reported on code.google.com by `aresnick...@gmail.com` on 17 Jul 2010 at 7:39
