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

2.7: 10 million (M)

2.6: 0.5 M

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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.

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So totals:

Python 2.x: 10.5 M

Python 3.x: 1.8 M

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Python 2.x is waaaaay ahead over 3.x