cssselect==0.9.2 lxml==4.6.5 Markdown==2.6.6 Pillow==9.0.1 pymongo==3.3.0 PyPDF2==1.27.5 python-frontmatter==0.3.1 PyYAML==5.4 requests==2.20.0 six==1.10.0 smartcrop==0.1 toml==0.9.2 Unidecode==0.4.19