From the C++ developers I work with they all seemed to think the learning curve wasn't much and that you should be able to pick it up fast.
Hell I'm a VB.Net guy and I don't think it's too hard to pick up (ie I haven't had any problems converting my stuff to C# or taking C# stuff and converting to VB.Net),

. Course I haven't done very advance stuff yet.
Personally I'm looking forward to the Visual Python compiler from ActivateState. That's something I would really like to pick up.