old_contents: import os
  
  NOSQL = any([name in (os.getenv("DB") or "")
              for name in ("datastore", "mongodb", "imap")])
  
  if NOSQL:
      from test_dal_nosql import *
  else:
      from sql import *
  
new_contents: import os
  
  NOSQL = any([name in (os.getenv("DB") or "")
              for name in ("datastore", "mongodb", "imap")])
  
  if NOSQL:
      from nosql import *
  else:
      from sql import *
  
subject: Fix wrong import in tests