make unprivileged windows 10 symlink ( python ctypes )

mkUnprivedSymlink.py

def mkUnprivedSymlink(source, target, dir=False):
  # https://docs.microsoft.com/en-us/windows/desktop/api/winbase/nf-winbase-createsymboliclinkw
  import ctypes
  import ctypes.wintypes
  # 0x0 (file) or 0x1 (dir) + 0x2 (unprived mode)
  dwFlags = 2 if dir == False else 3
  CreateSymbolicLinkW = ctypes.WinDLL("kernel32").CreateSymbolicLinkW
  CreateSymbolicLinkW.restype = ctypes.wintypes.DWORD
  CreateSymbolicLinkW.argtypes = (ctypes.wintypes.LPCWSTR, ctypes.wintypes.LPCWSTR, ctypes.wintypes.DWORD)
  ret = CreateSymbolicLinkW(source, target, dwFlags)
  # 0 = bad
  if ret == 0:
    raise ctypes.WinError()