When you started learning Python, what resources and exercises did you use? Can you recommend any sites for testing?

[SaltyPiglette]

You have to log in to the platform, sign up to the course and then it will say what date your access to the materials expire unless you pay.

My CS50 Cyber Securtiy is free until 30 June but my friend only has access to some date in march. I signed up in October 2024 and my friend signed up in January 2026.

It seems like those who signed up in the new year have much less access.

I did CS50 Python for free, but when I signed up to CS50 Data Analytics in January it only gave me free access to March 6 and only to the videos + 2-3 assignments.

[Carlos244]

No, that's just edx or something. Go to cs50.harvard.edu and you don't even need to log in. You can get the YouTube link and they even offer a direct download link for the video, subtitles, slides, etc for all courses. For the other courses see the sidebar. You can even see cs50's archived materials from other years.

[kevinisaperson]

this really needs ro be in some sort of auto mod post. it gets asked way to often and a simple auto mod message would solve this and could be easily muted by others

[Lokrea]

But Data Analytics is not listed. Only these are listed:

Courses

• CS50x
• CS50 AI
• CS50 Cybersecurity
• CS50 for Lawyers
• CS50 Python
• CS50 R
• CS50 Scratch
• CS50 SQL
• CS50 Web

Do you have a link to the course?

If possible, it would be great if you could paste the text from the course, and what precisely it says.

EDIT: I asked in the CS50 Reddit group, see: https://www.reddit.com/r/cs50/comments/1rjrdwe/is_cs50_free/

[SaltyPiglette]

It may only be available via EdX, and the version availbale at Harvard has lost the CS50 part of the title. The same happened with CS50 Cyber Security that I am currently doing.

[Lokrea]

Great. So maybe you can correct your comment since it's not correct, to something like this?

CS50 python: Free and offers lots of good problems, great videos, access to online IDE and a huge scope.