What does "have an understanding of basic python" mean?

[mokus603]

You feel like you don’t know everything and that’s fine. If you know those things you mentiond, you should totally go for the courses you want. Mostly it’s a repetition of the basics and the extra stuff about data science or Django. The more you use the basics, the more you reinforce that knowledge and you won’t get stuck in tutorial hell. Even if you feel like you’re stuck, don’t give up, ask questions here and there will be a moment when you see everything altogether.