If you only have time to learn one language, learn Python, because it&#x27;s better for non-statistical purposes (I don&#x27;t think that&#x27;s very controversial).<p>If you need cutting-edge or esoteric statistics, use R. If it exists, there is an R implementation, but the major Python packages really only cover the most popular techniques.<p>If neither of those apply, it&#x27;s mostly a matter of taste which one you use, and they interact pretty well with each other anyway.