old_contents: #  This file is part of the myhdl library, a Python package for using
  #  Python as a Hardware Description Language.
  #
  #  Copyright (C) 2003-2008 Jan Decaluwe
  #
  #  The myhdl library is free software; you can redistribute it and/or
  #  modify it under the terms of the GNU Lesser General Public License as
  #  published by the Free Software Foundation; either version 2.1 of the
  #  License, or (at your option) any later version.
  #
  #  This library is distributed in the hope that it will be useful, but
  #  WITHOUT ANY WARRANTY; without even the implied warranty of
  #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  #  Lesser General Public License for more details.
  #
  #  You should have received a copy of the GNU Lesser General Public
  #  License along with this library; if not, write to the Free Software
  #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  
  """ MyHDL miscellaneous public objects.
  
  This module provides the following public myhdl objects:
  instances -- function that returns instances in a generator function
  downrange -- function that returns a downward range
  
  """
  from __future__ import absolute_import
  
  
  import sys
  import inspect
  
  from types import GeneratorType
  from types import GeneratorType, ListType, TupleType
  
  from myhdl._Cosimulation import Cosimulation
  from myhdl._instance import _Instantiator
        
  def _isGenSeq(obj):
      if isinstance(obj, (Cosimulation, _Instantiator)):
          return True
      if not isinstance(obj, (ListType, TupleType, set)):
          return False
  ##     if not obj:
  ##         return False
      for e in obj:
          if not _isGenSeq(e):
              return False
      return True
  
      
  def instances():
      f = inspect.currentframe()
      d = inspect.getouterframes(f)[1][0].f_locals
      l = []
      for v in d.values():
        if _isGenSeq(v):
           l.append(v)
      return l
      
  def downrange(start, stop=0, step=1):
      """ Return a downward range. """
      return range(start-1, stop-1, -step)
  
new_contents: #  This file is part of the myhdl library, a Python package for using
  #  Python as a Hardware Description Language.
  #
  #  Copyright (C) 2003-2008 Jan Decaluwe
  #
  #  The myhdl library is free software; you can redistribute it and/or
  #  modify it under the terms of the GNU Lesser General Public License as
  #  published by the Free Software Foundation; either version 2.1 of the
  #  License, or (at your option) any later version.
  #
  #  This library is distributed in the hope that it will be useful, but
  #  WITHOUT ANY WARRANTY; without even the implied warranty of
  #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  #  Lesser General Public License for more details.
  #
  #  You should have received a copy of the GNU Lesser General Public
  #  License along with this library; if not, write to the Free Software
  #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  
  """ MyHDL miscellaneous public objects.
  
  This module provides the following public myhdl objects:
  instances -- function that returns instances in a generator function
  downrange -- function that returns a downward range
  
  """
  from __future__ import absolute_import
  
  
  import sys
  import inspect
  
  from myhdl._Cosimulation import Cosimulation
  from myhdl._instance import _Instantiator
        
  def _isGenSeq(obj):
      if isinstance(obj, (Cosimulation, _Instantiator)):
          return True
      if not isinstance(obj, (list, tuple, set)):
          return False
  ##     if not obj:
  ##         return False
      for e in obj:
          if not _isGenSeq(e):
              return False
      return True
  
      
  def instances():
      f = inspect.currentframe()
      d = inspect.getouterframes(f)[1][0].f_locals
      l = []
      for v in d.values():
        if _isGenSeq(v):
           l.append(v)
      return l
      
  def downrange(start, stop=0, step=1):
      """ Return a downward range. """
      return range(start-1, stop-1, -step)
  
subject: clean up types for python3