/usr/lib/python2.7/dist-packages/ptrace/debugger/ is in python-ptrace 0.7-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/ptrace/debugger/__init__.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/application.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/backtrace.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/breakpoint.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/child.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/debugger.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/memory_mapping.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/parse_expr.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/process.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/process_error.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/process_event.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/ptrace_signal.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/signal_reason.py
/usr/lib/python2.7/dist-packages/ptrace/debugger/syscall_state.py