Which is the best to Learn within Days: Hadoop, Python or Pega?

I am thinking about taking on a technical course but the problem is the staggering number of options. From Java, Ruby and PHP to CSS and C++, the list of the coding languages that I can learn and courses I can enroll for is never-ending. Also, time is a huge limitation in my case as I only have a few days to learn a new coding language.

After long deliberations, I have zeroed in on Hadoop, Python and Pega, and would like you to tell me which one of these would be the best to learn in my situation. You can use the comment section below to share your views.

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