  #!/usr/bin/env python3
  """
  Library providing convenient classes and methods for writing data to files.
  """
  import sys
  import json
  import pickle
  
  try:
      import yaml
 
</s> remove from importlib import import_module
 </s> add import logging
import logging
  #!/usr/bin/env python3
  """
  Library providing convenient classes and methods for writing data to files.
  """
import logging
  import json
  import pickle
  
  try:
      import yaml
keep keep keep keep replace keep keep keep keep keep
 Logging (#541)

* Convert prints to logger. Further logging improvements. Tidy  up

* Fix system verbosity. Allow SystemExit

* Fix reload extract bug

* Child Traceback handling

* Safer shutdown procedure

* Add shutdown event to queue manager

* landmarks_as_xy > property. GUI notes + linting. Aligner bugfix

* fix FaceFilter. Enable nFilter when no Filter is supplied

* Fix blurry face filter

* Continue on IO error. Better error handling

* Explicitly print stack trace tocrash log

* Windows Multiprocessing bugfix

* Add git info and conda version to crash log

* Windows/Anaconda mp bugfix

* Logging fixes for training 
lib/Serializer.py