old_contents: import re
  import os
  import sys
  import time
  import numpy
  import shutil
  import pickle
  import datetime
  
  try:
      import pycuda
  except ImportError:
      ans = input('PyCUDA not found.  Regression tests will take forever.  Do you want to continue? [y/n] ')
      if ans in ['Y', 'y']:
          pass
      else:
          sys.exit()
  
  from pygbe.main import main as pygbe
  
  mesh = ['500', '2K', '8K', '32K']
  
  
  def picklesave(test_outputs):
      with open('tests','wb') as f:
          pickle.dump(test_outputs, f, 2)
  
  def pickleload():
      with open('tests', 'rb') as f:
          test_outputs = pickle.load(f)
  
      return test_outputs
  
  
  
new_contents: import re
  import os
  import sys
  import time
  import numpy
  import pickle
  import datetime
  
  try:
      import pycuda
  except ImportError:
      ans = input('PyCUDA not found.  Regression tests will take forever.  Do you want to continue? [y/n] ')
      if ans in ['Y', 'y']:
          pass
      else:
          sys.exit()
  
  from pygbe.main import main as pygbe
  
  mesh = ['500', '2K', '8K', '32K']
  
  
  def picklesave(test_outputs):
      with open('tests','wb') as f:
          pickle.dump(test_outputs, f, 2)
  
  def pickleload():
      with open('tests', 'rb') as f:
          test_outputs = pickle.load(f)
  
      return test_outputs
  
  
  
subject: Remove unnecessary import