old_contents: import sys
  import os.path
  
  collect_ignore = []
  current_dir = os.path.dirname(os.path.abspath(__file__))
  
  
  if sys.version_info.major < 3 or sys.version_info.major == 3 and sys.version_info.minor < 7:
      collect_ignore.append(os.path.join(current_dir, "test_async.py"))
  
new_contents: import sys
  import os.path
  
  collect_ignore = []
  current_dir = os.path.dirname(os.path.abspath(__file__))
  
  if sys.version_info.major < 3:
      collect_ignore.append(os.path.join(current_dir, "test_async.py"))
  
subject: check if py2 works at least