Tupac's Sister Slams Donald Trump's Attorney for Comparing Him to Rapper

Donald Trump's attorney drawing a parallel between the former president and the legendary Tupac Shakur does not sit well with the late rapper's sister ... who says the comparison is absurd and laughable.

Set Shakur, Tupac's sister, tells TMZ ... "My brother was measured by his integrity, his principles and personal and collective responsibility," calling the recent comments made by Trump's attorney, Alina Habba, "blasphemous."

She points out her brother took responsibility during his 1994 sexual abuse trial, and says she isn't seeing a whole lot of accountability coming from DT.

As we reported, Trump's attorney made the connection on the same day he flew to NYC for his indictment. She said his legal trouble is going to boost his poll numbers, just like Tupac's record sales went up after spending time in prison.

Set says Tupac didn't get popular because of his lockup, though -- instead claiming his popularity grew because those who listened to his music "were able to measure him by his words and actions that aligned."

She goes on to praise her late brother, calling him an honorable man who stood for those needing protection ... always having others on his mind.

Set believes DT's attorney might be invoking Tupac's name as a ploy to play to the rapper's fans ... and she's hoping they don't take the bait.