new_contents: """
  Script for invoking pytest with options to select Qt library
  """
  
  import sys
  import pytest
  
  args = sys.argv[1:]
  if '--pyside' in args:
      args.remove('--pyside')
      import PySide
  elif '--pyqt4' in args:
      args.remove('--pyqt4')
      import PyQt4
  elif '--pyqt5' in args:
      args.remove('--pyqt5')
      import PyQt5
  
  import pyqtgraph as pg
  pg.systemInfo()
  
  pytest.main(args)
      
      
subject: Add simple script for invoking pytest