How can I edit the url in FileURL, ArtistURL, UserDefinedURL tags?

[pendave]

tag = stagger.read_tag(song)
print(tag)
for key , value in tag.items():
print(key,value)

WOAF WOAF('http://www.xxxx.com/mp3/alan-walker/alone.html')
WOAR [WOAR(url='http://www.xxxx.com/mp3/alan-walker/alone.html')]
WXXX [WXXX(encoding=0, description='', url='http://www.xxxx.com/mp3/alan-walker/alone.html')]

How can I edit the url in FileURL, ArtistURL, UserDefinedURL tags?
How to use alternative?
Accoding to
https://sno.phy.queensu.ca/~phil/exiftool/TagNames/ID3.html

In my Python script
tag.album tag.title tag.artist tag.genre tag.comment work well.

But error with
tag.fileurl tag.artisturl tag.userdefinedurl