Even if you're trying to be funny, a falsehood is still a falsehood. So kindly please stop saying things that we know are untrue. Assange has neither been charged with nor convicted of rape. He is innocent until proven guilty, no matter what we know about his actions and lifestyle.
The swedes want him for questioning in regards to two (if I recall correctly) alleged rapes. However it's unlikely that if he did return to Sweden that they would even be able to charge him let alone convict him of rape. But getting him in Swedish custody paves the way for extradition to the United States where the current government wishes to punish him severely for exposing their sins. There's near certainty that's why the Swedes have pursued him thus. And that's why he's fighting this extradition tooth and nail.
It's kind of like how the mob bosses in 1930s Chicago were brought down. They never could make actual charges of murder stick, so they got him on tax evasion. Means to an end for the US government.