/usr/lib/python3/dist-packages/Cython/Includes/libcpp/__init__.pxd is in cython3 0.25.2-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | cdef extern from *:
ctypedef bint bool
ctypedef void* nullptr_t
nullptr_t nullptr
|