'NoneType' object has no attribute 'initTag' : how can I solve this?

Question

I had an error:'NoneType' object has no attribute 'tag' so I found it can be solved with running initTag. but as I ran initTag, I got an error : 'NoneType' object has no attribute 'initTag'. and there was no tag in the MP3 files. Below are the code :

for i in range(len(namelist)):
        path = "%s.mp3" % namelist[i]
        tag = eyed3.load(path1)
        tag.initTag()
        tag.tag.artist = artistlist[i]
        tag.tag.album = albumlist[i]
        tag.tag.save()

how can I solve this?