$ ./python Lib/test/test_dbm.py
..BDB0004 fop_read_meta: @test_29975_tmp_ndbm.db: unexpected file type or format
..EBDB3028 @test_29975_tmp.db: unable to flush: No such file or directory
..EBDB3028 @test_29975_tmp.db: unable to flush: No such file or directory
.E.........
======================================================================
ERROR: test_anydbm_creation (__main__.TestCase-dbm.ndbm)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "Lib/test/test_dbm.py", line 73, in test_anydbm_creation
    self.read_helper(f)
  File "Lib/test/test_dbm.py", line 114, in read_helper
    self.assertEqual(self._dict[key], f[key.encode("ascii")])
KeyError: b'0'

======================================================================
ERROR: test_anydbm_modification (__main__.TestCase-dbm.ndbm)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "Lib/test/test_dbm.py", line 88, in test_anydbm_modification
    self.read_helper(f)
  File "Lib/test/test_dbm.py", line 114, in read_helper
    self.assertEqual(self._dict[key], f[key.encode("ascii")])
KeyError: b'0'

======================================================================
ERROR: test_anydbm_read (__main__.TestCase-dbm.ndbm)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "Lib/test/test_dbm.py", line 94, in test_anydbm_read
    self.read_helper(f)
  File "Lib/test/test_dbm.py", line 114, in read_helper
    self.assertEqual(self._dict[key], f[key.encode("ascii")])
KeyError: b'0'

----------------------------------------------------------------------
Ran 19 tests in 0.683s

FAILED (errors=3)