https://docs.python.org/es/3/tutorial/
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https://es.python.org/aprende-python/
https://github.com/TheAlgorithms/Python
https://codewars.com
https://www.geeksforgeeks.org/python-exercises-practice-questions-and-solutions/
https://realpython.com/python-practice-problems/
https://www.w3schools.com/python/python_exercises.asp