@N0ob Yes, usually two consecutive courses are available at the same time. Starting from Jan 1 the first and second courses will most likely become available for enrollment.
If you have enough free time and are able to learn fast, I advise you to enroll to both and do them one by one. I assume your pace will be quicker than average, so you will be able to finish the first and second one in due time 👍
@C Lover Yes, it is free as long as you don't strive for the certificate. Then even the assignments and peer-reviewed projects are available. So that not only can you learn, but also practice and evaluate your knowledge instantly.
All videos are free, all lessons are free, all auto-grader tasks and all peer-reviewed assignments are free and quiz admissions, too. The only thing that is not available is the capstone project and obtaining a certificate.
And the above applies to all five courses within the Python for Everybody specialization, provided they are taken one by one: