Python 2 vs Python 3 for teaching

[beliavsky at aol.com]

I think Python 2.x is still used more than Python 3.x in scientific computing. The Python books I have in this area, such as "Python for Finance: Analyze Big Financial Data" and "Python for Data Analysis", still use Python 2.x . An aspiring computational scientist, data scientist, or financial quant may still be better off learning Python 2.x but using print(x) rather than print x and doing other things to future-proof his code.