Hello, this is because python is very easy to use. For Europeans and Americans, python's grammar and sentence structure are similar to their native English. As long as you have an idea or so-called pseudo code, it can be easily realized in python language. Therefore, python is very helpful to the teaching of programming language, and therefore many programming courses in European and American universities use python as the teaching language. So you will see many related courses. Moreover, python is very similar to C, C++, Java and other languages in grammar and function, so learning python can provide a good foundation for learning C, C++, Java and other languages, so there will be a large number of related courses. Python was not particularly popular at 20 12, but with its more and more powerful functions, programmers' understanding of python's powerful functions has increased their demand for Python. I hope my explanation can answer your doubts ~