text: #!/usr/bin/env python
  # -*- encoding: utf-8 -*-
  
  # Copyright 2016 Twitter. All rights reserved.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #    http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  ''' pyobj.py '''
  import sys
  
  isPY3 = sys.version_info >= (3, 0, 0)
  
  # helper method to support python 2 and 3
  def is_str_instance(obj):
    if isPY3:
      return isinstance(obj, str)
    else:
      return str(type(obj)) == "<type 'unicode'>" or str(type(obj)) == "<type 'str'>"
  