/usr/share/pyshared/brian/experimental/codegen2/ is in python-brian 1.4.1-2.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/brian/experimental/codegen2/__init__.py
/usr/share/pyshared/brian/experimental/codegen2/blocks.py
/usr/share/pyshared/brian/experimental/codegen2/codeitems.py
/usr/share/pyshared/brian/experimental/codegen2/codeobject.py
/usr/share/pyshared/brian/experimental/codegen2/connection.py
/usr/share/pyshared/brian/experimental/codegen2/dependencies.py
/usr/share/pyshared/brian/experimental/codegen2/equations.py
/usr/share/pyshared/brian/experimental/codegen2/expressions.py
/usr/share/pyshared/brian/experimental/codegen2/formatting.py
/usr/share/pyshared/brian/experimental/codegen2/gpu/
/usr/share/pyshared/brian/experimental/codegen2/gpu/__init__.py
/usr/share/pyshared/brian/experimental/codegen2/gpu/compaction.py
/usr/share/pyshared/brian/experimental/codegen2/gpu/importpycuda.py
/usr/share/pyshared/brian/experimental/codegen2/gpu/management.py
/usr/share/pyshared/brian/experimental/codegen2/integration.py
/usr/share/pyshared/brian/experimental/codegen2/languages.py
/usr/share/pyshared/brian/experimental/codegen2/makeintegrator.py
/usr/share/pyshared/brian/experimental/codegen2/reset.py
/usr/share/pyshared/brian/experimental/codegen2/resolution.py
/usr/share/pyshared/brian/experimental/codegen2/statements.py
/usr/share/pyshared/brian/experimental/codegen2/stateupdater.py
/usr/share/pyshared/brian/experimental/codegen2/symbols.py
/usr/share/pyshared/brian/experimental/codegen2/threshold.py