I have no idea what the Go code does, but the python code is immediately clear. It reads like a line of English.

I can't see how anyone could prefer the Go version.

And I don't know if python allows this (it may not due to the significance of whitespace), but your proportionality problem can be easily resolved by placing each different clause on a different line, like this:

  sum((j if j % 2 else 0) 
    for (j, k) 
    in results 
    if k)