He’s gone from dirty self-portraits to dirty diapers. A year after randy ex-US Rep. Anthony Weiner’s political career collapsed in a sexting scandal, the disgraced pol is still without a job — left to pull duty as Mr. Mom for his newborn son as his powerhouse wife, Huma Abedin, globe-trots with the diplomatic corps, The Post has learned. The one-time Queens-Brooklyn congressman — here with Abedin and baby Jordan near their Park Avenue home over the weekend — occasionally offers paid political advice to associates who seek him out. But he still hasn’t figured out what his next real act will be.