/usr/share/pyshared/pyth/plugins/ is in python-pyth 0.5.6-3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/pyth/plugins/__init__.py
/usr/share/pyshared/pyth/plugins/latex/
/usr/share/pyshared/pyth/plugins/latex/__init__.py
/usr/share/pyshared/pyth/plugins/latex/writer.py
/usr/share/pyshared/pyth/plugins/pdf/
/usr/share/pyshared/pyth/plugins/pdf/__init__.py
/usr/share/pyshared/pyth/plugins/pdf/writer.py
/usr/share/pyshared/pyth/plugins/plaintext/
/usr/share/pyshared/pyth/plugins/plaintext/__init__.py
/usr/share/pyshared/pyth/plugins/plaintext/writer.py
/usr/share/pyshared/pyth/plugins/python/
/usr/share/pyshared/pyth/plugins/python/__init__.py
/usr/share/pyshared/pyth/plugins/python/reader.py
/usr/share/pyshared/pyth/plugins/rst/
/usr/share/pyshared/pyth/plugins/rst/__init__.py
/usr/share/pyshared/pyth/plugins/rst/writer.py
/usr/share/pyshared/pyth/plugins/rtf15/
/usr/share/pyshared/pyth/plugins/rtf15/__init__.py
/usr/share/pyshared/pyth/plugins/rtf15/reader.py
/usr/share/pyshared/pyth/plugins/rtf15/writer.py
/usr/share/pyshared/pyth/plugins/xhtml/
/usr/share/pyshared/pyth/plugins/xhtml/__init__.py
/usr/share/pyshared/pyth/plugins/xhtml/css.py
/usr/share/pyshared/pyth/plugins/xhtml/reader.py
/usr/share/pyshared/pyth/plugins/xhtml/writer.py