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My background: switched major to CS in graduate school, familiar with Python, and need to deal with JSON and csv-like data every day. Python has been handy doing the job, but I just started learning Lisp for fun. Though the language looks powerful, for many simple tasks I have to start from scratch while Python usually has convenient libraries and can do things in one line.
My friends say Lisp is too old and not suitable for data mining task, no one is actually using that for work, and they all prefer Python. But I leave their words to doubt as they are not familiar with Lisp. (In our generation, people don't seem to learn functional programming any more?)
Is it still worthy to invest time learning Lisp, for data mining purposes? Any advice is welcome. Thanks :-)