class_docstr: Temporary stub class.  Ideally when stdin is accessed, the
  capturing should be turned off, with possibly all data captured
  so far sent to the screen.  This should be configurable, though,
  because in automated test runs it is better to crash than
  hang indefinitely.
code: def isatty(self):
      return False
  
imports: import os
  import sys
  import py
  import tempfile
label_desc: Use image node_id 3 for calling the DontReadFromInput obj's underlying member method code with example usage: obj.isatty() and returns: False