/usr/share/pyshared/HTMLgen/ is in python-htmlgen 2.2.2-12.1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/HTMLgen/Formtools.py
/usr/share/pyshared/HTMLgen/GifImagePluginH.py
/usr/share/pyshared/HTMLgen/HTMLcalendar.py
/usr/share/pyshared/HTMLgen/HTMLcolors.py
/usr/share/pyshared/HTMLgen/HTMLgen.py
/usr/share/pyshared/HTMLgen/HTMLutil.py
/usr/share/pyshared/HTMLgen/ImageFileH.py
/usr/share/pyshared/HTMLgen/ImageH.py
/usr/share/pyshared/HTMLgen/ImagePaletteH.py
/usr/share/pyshared/HTMLgen/JpegImagePluginH.py
/usr/share/pyshared/HTMLgen/NavLinks.py
/usr/share/pyshared/HTMLgen/PngImagePluginH.py
/usr/share/pyshared/HTMLgen/barchart.py
/usr/share/pyshared/HTMLgen/colorcube.py
/usr/share/pyshared/HTMLgen/imgsize.py