/usr/share/pyshared/pychecker2/ is in pychecker 0.8.19-12.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/pychecker2/Check.py
/usr/share/pyshared/pychecker2/ClassChecks.py
/usr/share/pyshared/pychecker2/ConditionalChecks.py
/usr/share/pyshared/pychecker2/File.py
/usr/share/pyshared/pychecker2/FormatStringChecks.py
/usr/share/pyshared/pychecker2/ImportChecks.py
/usr/share/pyshared/pychecker2/OpChecks.py
/usr/share/pyshared/pychecker2/Options.py
/usr/share/pyshared/pychecker2/ParseChecks.py
/usr/share/pyshared/pychecker2/ReachableChecks.py
/usr/share/pyshared/pychecker2/ReturnChecks.py
/usr/share/pyshared/pychecker2/ScopeChecks.py
/usr/share/pyshared/pychecker2/TestSupport.py
/usr/share/pyshared/pychecker2/VariableChecks.py
/usr/share/pyshared/pychecker2/Warning.py
/usr/share/pyshared/pychecker2/__init__.py
/usr/share/pyshared/pychecker2/main.py
/usr/share/pyshared/pychecker2/symbols.py
/usr/share/pyshared/pychecker2/test.py
/usr/share/pyshared/pychecker2/util.py