disk list have errror

[danny-source]

when i have first index 0: and it have NAME

/dev/disk2
   #:                       TYPE NAME                    SIZE       IDENTIFIER
   0:                  Apple_HFS OSX1010                *49.9 GB    disk2

            try:
                dev = line[4]
                size = line[2].lstrip('*')
                unit = line[3]
            except IndexError:
                dev = line[3]
                size = line[1]
                unit = line[2]

try

            for line2 in line:
                match = re.search('disk', line2)
                if match:
                    break
                else:
                    idx = idx +1                
                dev = line[idx]
                unit = line[idx-1]          
                size = line[idx-2].lstrip('*')

get the last ,first.