Professional Python IDEs?
sb: I use emacs for all my coding work (multiple languages) and am very satisfied with it. I have tried Komodo and a couple of my colleagues at work swear by it--it's a bit bloated for my taste, but probably I am kind of old fashioned...
(btw: same holds true for Eclipse--imho at least). It would probably be nice to know what experience you've had with emacs and why you are looking for an ide, then people might be able to point you towards comparable/corresponding emacs features...(e.g. my problem is the completion feature with both python modes--i just can't get it to work, which is definitely a pitty, but probably i am just too incompetent :)