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Its third, and major, drawback is that Python has a legacy in many groups.

• chalst 5y ago
  True, although the Python-Julia interop is surprisingly good. Gradual migration of legacy code from Python to Julia might be a possibility for some of these groups. But I was really thinking about the situation for new projects when writing that comment.
  • bernulli 5y ago
    Same thing, you will want to reuse existing code, and you do not want to split knowledge in your student group. There is no such thing as 'gradual' migration: I either have to support Python in my group, or Python and Julia -- until everything is migrated. If I have a working ecosystem using Python, with students trained in Python, and all previous work in Python, there's a whole lot of opportunity cost associated with me deciding to have the next student use Julia. I'd rather have that student build on existing tools and knowledge and do something new with their time.