How to dereference a memory location from python ctypes?

Question

I want to replicate the following c code in python ctypes:

main() {
  long *ptr = (long *)0x7fff96000000;
  printf(\"%lx\",*ptr);
}

I can f

Answer 1

ctypes.cast.

>>> import ctypes
>>> c_long_p = ctypes.POINTER(ctypes.c_long)
>>> some_long = ctypes.c_long(42)
>>> ctypes.addressof(some_long)
4300833936
>>> ctypes.cast(4300833936, c_long_p)
<__main__.LP_c_long object at 0x1005983b0>
>>> ctypes.cast(4300833936, c_long_p).contents
c_long(42)