[bobsy]

I think the broader point is to use a single language over as many of your system's as possible. Rather than just "Python is the answer to everything."

Obviously there are benefits and drawbacks to such an idea. Benefit is every programmer you hire can be a Python developer. Should make meetings fairly simple. You need to worry less about ensuring you have an adequate number of x developers to maintain the system which relies on language x.

Obviously the drawback is that Python, like any other language, isn't the best choice for everything. To get round such inefficiencies Dropbox choose to buy larger machines.