The crooked scion of a Bronx political family failed yesterday in a bid to serve weekends behind bars for looting $115,000 from a nonprofit housing firm.

Richard Izquierdo Arroyo, whose grandmother and aunt are both Democratic pols, asked to amend his year-and-a-day prison term “to preserve the stable home life” of the two young boys he’s raising with his gay partner.

Manhattan federal Judge Alvin Hellerstein rejected the request “as not the sentence I ordered, nor is it the sentence I think appropriate.”