For those looking at this, just a head's up - this is YC '12 DataNitro (formerly IronSpread) talking about their product.<p>Also, as a side note since I like python, it's definitely not the only way to do python in Excel. With pyWin32, you can register python code as a COM server and call it from Excel in VB. Additionally there's projects like pyxll which, while not the prettiest, are at least free for non-personal use.<p>I will say this though - thank you, DataNitro, for having a free tier.
I've attended a talk from one of the co-founders in a python for finance conference, the demos looked really good, only draw back I thought was that if you develop anything using DataNitro, anybody wanting to see the spreadsheet and run your code would need a licensed copy of DataNitro on their machines for it work.
Excel? Is this serious?<p>Edit: Reasons for downvotes, please? I have said nothing nonconstructive. I am seriously baffled as to why techies are still using Excel rather than an actual database.