Ask HN: Good intro CS course in Python?

I'm looking for a good intro CS course in Python that I can use to teach one of my relatives. Something that has materials, exercises, and a good structure to introduce CS concepts to them. Ideally it would give some exposure to 1) data structures, 2) algorithm analysis (ideally not through sorting if possible ...), 3) scope, and 4) IO and string modification. The target audience is someone with high aptitude and rudimentary programming experience. (Has written some code, but no exposure to concepts.)

Any suggestions?