wmi.py 文件源码

def handle_com_error (err=None):
  """Convenience wrapper for displaying all manner of COM errors.
  Raises a :exc:`x_wmi` exception with more useful information attached

  :param err: The structure attached to a `pywintypes.com_error`
  """
  if err is None:
    _, err, _ = sys.exc_info ()
  hresult_code, hresult_name, additional_info, parameter_in_error = err.args
  hresult_code = signed_to_unsigned (hresult_code)
  exception_string = ["%s - %s" % (hex (hresult_code), hresult_name)]
  scode = None
  if additional_info:
    wcode, source_of_error, error_description, whlp_file, whlp_context, scode = additional_info
    scode = signed_to_unsigned (scode)
    exception_string.append ("  Error in: %s" % source_of_error)
    exception_string.append ("  %s - %s" % (hex (scode), (error_description or "").strip ()))
  for error_code, klass in WMI_EXCEPTIONS.items ():
    if error_code in (hresult_code, scode):
      break
  else:
    klass = x_wmi
  raise klass (com_error=err)