Python has iPython going for it, which is drop dead awesome to tinker with. I'm back to Perl, but the time I spent with Python was definitely made even more fun by iPython.
IPython is fantastic. I'm working through project Euler with Python, IPython and notepad++. I work with C#, asp.net during my day job. While C# is a great language and the .net framework is the most sane API I've ever used, I was able to do some of the Euler problems in one, easy to understand line.
