old_contents: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  
  import ctypes
  import sys
  
  from nixnet import errors
  
  
  class PlatformUnsupportedError(errors.Error):
  
      def __init__(self, platform):
          message = '{0} is unsupported by this package.'.format(platform)
          super(PlatformUnsupportedError, self).__init__(message, platform)
  
  
  class XnetNotFoundError(errors.Error):
  
      def __init__(self, *args):
          message = (
              'Could not find an installation of NI-XNET. Please '
              'ensure that NI-XNET is installed on this machine or '
              'contact National Instruments for support.')
          super(XnetNotFoundError, self).__init__(message, *args)
  
  
  class XnetFunctionNotSupportedError(errors.Error):
  
      def __init__(self, function):
          message = (
              'The NI-XNET function "{0}" is not supported in this '
              'version of NI-XNET. Visit ni.com/downloads to upgrade your '
              'version of NI-XNET.'.format(function))
          super(XnetFunctionNotSupportedError, self).__init__(message, function)
  
  
  class XnetLibrary(object):
      """Proxy Library to consolidate nixnet-specific logic."""
  
      def __init__(self, library):
          self._library = library
  
      def __getattr__(self, function):
          try:
              return getattr(self._library, function)
          except AttributeError:
              raise XnetFunctionNotSupportedError(function)
  
  
  def _import_win_lib(self):
      lib_name = "nixnet"
      try:
          cdll = ctypes.cdll.LoadLibrary(lib_name)
      except OSError:
          raise XnetNotFoundError()
      return XnetLibrary(cdll)
  
  
  def _import_unsupported(self):
      raise PlatformUnsupportedError(sys.platform)
  
  
  if sys.platform.startswith('win') or sys.platform.startswith('cli'):
      import_lib = _import_win_lib
  else:
      import_lib = _import_unsupported
  
new_contents: from __future__ import absolute_import
  from __future__ import division
  from __future__ import print_function
  from __future__ import unicode_literals
  
  
  import ctypes
  import sys
  
  from nixnet import errors
  
  
  class PlatformUnsupportedError(errors.Error):
  
      def __init__(self, platform):
          message = '{0} is unsupported by this package.'.format(platform)
          super(PlatformUnsupportedError, self).__init__(message, platform)
  
  
  class XnetNotFoundError(errors.Error):
  
      def __init__(self, *args):
          message = (
              'Could not find an installation of NI-XNET. Please '
              'ensure that NI-XNET is installed on this machine or '
              'contact National Instruments for support.')
          super(XnetNotFoundError, self).__init__(message, *args)
  
  
  class XnetFunctionNotSupportedError(errors.Error):
  
      def __init__(self, function):
          message = (
              'The NI-XNET function "{0}" is not supported in this '
              'version of NI-XNET. Visit ni.com/downloads to upgrade your '
              'version of NI-XNET.'.format(function))
          super(XnetFunctionNotSupportedError, self).__init__(message, function)
  
  
  class XnetLibrary(object):
      """Proxy Library to consolidate nixnet-specific logic."""
  
      def __init__(self, library):
          self._library = library
  
      def __getattr__(self, function):
          try:
              return getattr(self._library, function)
          except AttributeError:
              raise XnetFunctionNotSupportedError(function)
  
  
  def _import_win_lib():
      lib_name = "nixnet"
      try:
          cdll = ctypes.cdll.LoadLibrary(lib_name)
      except OSError:
          raise XnetNotFoundError()
      return XnetLibrary(cdll)
  
  
  def _import_unsupported():
      raise PlatformUnsupportedError(sys.platform)
  
  
  if sys.platform.startswith('win') or sys.platform.startswith('cli'):
      import_lib = _import_win_lib
  else:
      import_lib = _import_unsupported
  
subject: Remove bad param from import calls