new_contents: import os, sys; sys.path.insert(0, os.path.dirname(os.path.dirname(__file__)))
  
  import fnmatch
  
  import numpy
  import pytest
  import pickle
  
  from lasio import las, read, exceptions
  
  
  test_dir = os.path.dirname(__file__)
  
  egfn = lambda fn: os.path.join(os.path.dirname(__file__), "examples", fn)
  stegfn = lambda vers, fn: os.path.join(
      os.path.dirname(__file__), "examples", vers, fn)
  
  
  def test_pickle_default_wb():
      las = read(egfn('sample.las'))
      with open('binary_serialization', 'wb') as fw:
          pickle.dump(las, fw)
      with open('binary_serialization', 'rb') as fr:
          las = pickle.load(fr)
  
subject: add test for #132