docstr: _htest - bool, change box when location running htest.
code: def __init__(self, flist, name, path, _htest=False):
      # XXX This API should change, if the file doesn't end in ".py"
      # XXX the code here is bogus!
      """
      _htest - bool, change box when location running htest.
      """
      global file_open
      if not _htest:
          file_open = PyShell.flist.open
      self.name = name
      self.file = os.path.join(path[0], self.name + ".py")
      self._htest = _htest
      self.init(flist)
  
imports: import os
  import sys
  import pyclbr
  from idlelib import PyShell
  from idlelib.WindowList import ListedToplevel
  from idlelib.TreeWidget import TreeNode, TreeItem, ScrolledCanvas
  from idlelib.configHandler import idleConf
label_desc: Use image node_id 1 to create a new ClassBrowser object  with example: obj = ClassBrowser(flist, name, path, _htest)