I agree, I also wish he would give actual numbers, rather than points on log chart, which are very hard to estimate by eye.

But to be fair, even with that, I doubt you would get more than 30% of Python 3 users. Which is kinda in line with other surveys, such as the one from JetBrains. (It's probably a good guess that users of Python applications are even more conservative in upgrading than developers of Python applications.)

ok let's do that, using the first graph for Overall Python Downloads:

2.7: 10 million (M)

2.6: 0.5 M

---

3.5: 1 M

3.4: 0.750 M

3.3: 0.05 M

3.2 and 3.1 too low to make a difference.

-------

So totals:

Python 2.x: 10.5 M

Python 3.x: 1.8 M

---

Python 2.x is waaaaay ahead over 3.x