Update some docs in utils.py
Update some docs in utils.py

duguxy/pyclibrary,MatthieuDartiailh/pyclibrary,duguxy/pyclibrary,MatthieuDartiailh/pyclibrary,mrh1997/pyclibrary,duguxy/pyclibrary,mrh1997/pyclibrary,mrh1997/pyclibrary