code: def test_fail():
      os.chdir("/dev")
  
file_path: datalad/tools/checkpwd.py
imports: import os
  from os import path
  import logging
  from nose.plugins.base import Plugin
  from nose.util import src, tolist
label_desc: Use image node_id 3 for calling a global function with example usage: test_fail() without return types