/usr/lib/python2.7/dist-packages/nbconvert/templates/ is in python-nbconvert 4.2.0-4.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/nbconvert/templates/README.md
/usr/lib/python2.7/dist-packages/nbconvert/templates/html/
/usr/lib/python2.7/dist-packages/nbconvert/templates/html/basic.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/html/full.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/html/mathjax.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/html/slides_reveal.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/article.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/base.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/report.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/skeleton/
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/skeleton/display_priority.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/skeleton/null.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/style_bw_ipython.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/style_bw_python.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/style_ipython.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/latex/style_python.tplx
/usr/lib/python2.7/dist-packages/nbconvert/templates/markdown.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/python.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/rst.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/script.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/skeleton/
/usr/lib/python2.7/dist-packages/nbconvert/templates/skeleton/README.md
/usr/lib/python2.7/dist-packages/nbconvert/templates/skeleton/display_priority.tpl
/usr/lib/python2.7/dist-packages/nbconvert/templates/skeleton/null.tpl