I agreed, I didn't want come off as a disgruntle statistician and list the weakness of Python. But you're right. I find most Springer, CRC, etc.. books are in

I agreed, I didn't want come off as a disgruntle statistician and list the weakness of Python. But you're right. I find most Springer, CRC, etc.. books are in R with accompanying R packages. Shumway & Stoffer Time series book comes with the R astra package. Andrew Gelman Bayesian create Stan and their target was R first (rstan). The Sanford people who created lasso and elasticnet created glmnet. The thought that the creators or experts of these subject wrote a book or research paper and then also publish R package to accompany it is reassuring. When it comes to just data analysis, it seem like R is pretty good or better than Python. I think Python is much better for ML stuff such as deep learning and also it seems like Python have better NLP support. Arguably Stanford is very good with NLP and they publish their tool in Java.