James Shaw appeared with a black eye at a climate change strike in Wellington following the attack. Photo: RNZ
Paul Raymond Harris (47) was found guilty in May of punching Mr Shaw repeatedly in the head as the MP walked to work in Wellington.
His lawyer has indicated it was likely Harris would apply for home detention.
Mr Shaw was grabbed and assaulted near the Botanic Gardens in March.
Mr Shaw suffered a broken eye socket, bloody nose and lacerations to his face.
