Print Device Categories

def print_dev_category():
    categories = [{"categoryId":"0", "dev_type":"router"},
              {"categoryId":"1", "dev_type":"switch"},
              {"categoryId":"2", "dev_type":"server"},
              {"categoryId":"3", "dev_type":"security"},
              {"categoryId":"4", "dev_type":'storage' },
              {"categoryId":"5", "dev_type":"wireless"},
              {"categoryId":"6", "dev_type": "voice"},
              {"categoryId":"7", "dev_type":'printer'},
              {"categoryId":"8", "dev_type":'ups'},
              {"categoryId":"9", "dev_type":"desktop"},
              {"categoryId":"10", "dev_type":"other"},
              {"categoryId":"11", "dev_type":"surveillance"},
              {"categoryId":"12", "dev_type":"video"},
              {"categoryId":"13", "dev_type":"module"},
              {"categoryId":"14", "dev_type":"virtualdev"},
	      {"categoryId":"15", "dev_type":"Load Balancer"},
              {"categoryId":"16", "dev_type":"sdn_ctrl"}
              ]
    for i in categories:
        print ("For "+i["dev_type"]+", Please press: "+i["categoryId"])