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Created on 2013-12-29 16:46 by ethan.furman, last changed 2022-04-11 14:57 by admin. This issue is now closed.
| Messages (7) | |||
|---|---|---|---|
| msg207079 - (view) | Author: Ethan Furman (ethan.furman) *  |
Date: 2013-12-29 16:46 | |
Following errors occur about half the time: ====================================================================== ERROR: test_anydbm_creation (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/ethan/source/python/issue19995/Lib/test/test_dbm.py", line 75, in test_anydbm_creation self.read_helper(f) File "/home/ethan/source/python/issue19995/Lib/test/test_dbm.py", line 117, in read_helper self.assertEqual(self._dict[key], f[key.encode("ascii")]) KeyError: b'0' ====================================================================== ERROR: test_anydbm_modification (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/ethan/source/python/issue19995/Lib/test/test_dbm.py", line 90, in test_anydbm_modification self.read_helper(f) File "/home/ethan/source/python/issue19995/Lib/test/test_dbm.py", line 117, in read_helper self.assertEqual(self._dict[key], f[key.encode("ascii")]) KeyError: b'0' ====================================================================== ERROR: test_anydbm_read (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/ethan/source/python/issue19995/Lib/test/test_dbm.py", line 96, in test_anydbm_read self.read_helper(f) File "/home/ethan/source/python/issue19995/Lib/test/test_dbm.py", line 117, in read_helper self.assertEqual(self._dict[key], f[key.encode("ascii")]) KeyError: b'0' |
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| msg207080 - (view) | Author: Ethan Furman (ethan.furman) * |
Date: 2013-12-29 16:48 | |
Actually, make that about 1/5 of the time. |
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| msg217630 - (view) | Author: Jesús Cea Avión (jcea) * |
Date: 2014-04-30 17:05 | |
I can't reproduce on Linux 12.04. I tried the test a thousand times. Ethan, what is your build environment? |
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| msg217639 - (view) | Author: Ethan Furman (ethan.furman) * |
Date: 2014-04-30 18:37 | |
Actually, I haven't had this issue in quite a while now, so closing. Thanks for taking a look at it, Jesús. |
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| msg285081 - (view) | Author: Anthony Sottile (asottile) * | Date: 2017-01-09 23:29 | |
I'm seeing this same failure in python3.5 on 16.04 about 20% of the time: ``` $ python3.5 -m test -v test_dbm == CPython 3.5.2 (default, Nov 17 2016, 17:05:23) [GCC 5.4.0 20160609] == Linux-4.4.0-57-generic-x86_64-with-Ubuntu-16.04-xenial little-endian == hash algorithm: siphash24 64bit == /tmp/test_python_8169 Testing with flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, quiet=0, hash_randomization=1, isolated=0) [1/1] test_dbm test_keys (test.test_dbm.WhichDBTestCase) ... ok test_whichdb (test.test_dbm.WhichDBTestCase) ... ok test_whichdb_ndbm (test.test_dbm.WhichDBTestCase) ... BDB0004 fop_read_meta: @test_8169_tmp_ndbm.db: unexpected file type or format ok test_anydbm_access (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_creation (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_creation_n_file_exists_with_invalid_contents (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_keys (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_modification (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_not_existing (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_read (test.test_dbm.TestCase-dbm.gnu) ... ok test_error (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_access (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_creation (test.test_dbm.TestCase-dbm.ndbm) ... ERROR BDB3028 @test_8169_tmp.db: unable to flush: No such file or directory test_anydbm_creation_n_file_exists_with_invalid_contents (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_keys (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_modification (test.test_dbm.TestCase-dbm.ndbm) ... ERROR BDB3028 @test_8169_tmp.db: unable to flush: No such file or directory test_anydbm_not_existing (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_read (test.test_dbm.TestCase-dbm.ndbm) ... ERROR test_error (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_access (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_creation (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_creation_n_file_exists_with_invalid_contents (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_keys (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_modification (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_not_existing (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_read (test.test_dbm.TestCase-dbm.dumb) ... ok test_error (test.test_dbm.TestCase-dbm.dumb) ... ok ====================================================================== ERROR: test_anydbm_creation (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/lib/python3.5/test/test_dbm.py", line 74, in test_anydbm_creation self.read_helper(f) File "/usr/lib/python3.5/test/test_dbm.py", line 115, in read_helper self.assertEqual(self._dict[key], f[key.encode("ascii")]) KeyError: b'0' ====================================================================== ERROR: test_anydbm_modification (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/lib/python3.5/test/test_dbm.py", line 89, in test_anydbm_modification self.read_helper(f) File "/usr/lib/python3.5/test/test_dbm.py", line 115, in read_helper self.assertEqual(self._dict[key], f[key.encode("ascii")]) KeyError: b'0' ====================================================================== ERROR: test_anydbm_read (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/usr/lib/python3.5/test/test_dbm.py", line 95, in test_anydbm_read self.read_helper(f) File "/usr/lib/python3.5/test/test_dbm.py", line 115, in read_helper self.assertEqual(self._dict[key], f[key.encode("ascii")]) KeyError: b'0' ---------------------------------------------------------------------- Ran 27 tests in 0.093s FAILED (errors=3) test test_dbm failed 1 test failed: test_dbm ``` Under 3.6 (built from source), it seems to fail 100% of the time ``` $ ./python -m test test_dbm -v == CPython 3.6.0 (default, Jan 9 2017, 15:00:38) [GCC 5.4.0 20160609] == Linux-4.4.0-57-generic-x86_64-with-debian-stretch-sid little-endian == hash algorithm: siphash24 64bit == cwd: /home/asottile/workspace/cpython/build/test_python_8246 == encodings: locale=UTF-8, FS=utf-8 Testing with flags: sys.flags(debug=0, inspect=0, interactive=0, optimize=0, dont_write_bytecode=0, no_user_site=0, no_site=0, ignore_environment=0, verbose=0, bytes_warning=0, quiet=0, hash_randomization=1, isolated=0) Run tests sequentially 0:00:00 [1/1] test_dbm test_keys (test.test_dbm.WhichDBTestCase) ... ok test_whichdb (test.test_dbm.WhichDBTestCase) ... ok test_whichdb_ndbm (test.test_dbm.WhichDBTestCase) ... BDB0004 fop_read_meta: @test_8246_tmp_ndbm.db: unexpected file type or format ok test_anydbm_access (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_creation (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_creation_n_file_exists_with_invalid_contents (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_keys (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_modification (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_not_existing (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_read (test.test_dbm.TestCase-dbm.gnu) ... ok test_error (test.test_dbm.TestCase-dbm.gnu) ... ok test_anydbm_access (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_creation (test.test_dbm.TestCase-dbm.ndbm) ... ERROR BDB3028 @test_8246_tmp.db: unable to flush: No such file or directory test_anydbm_creation_n_file_exists_with_invalid_contents (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_keys (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_modification (test.test_dbm.TestCase-dbm.ndbm) ... ERROR BDB3028 @test_8246_tmp.db: unable to flush: No such file or directory test_anydbm_not_existing (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_read (test.test_dbm.TestCase-dbm.ndbm) ... ERROR test_error (test.test_dbm.TestCase-dbm.ndbm) ... ok test_anydbm_access (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_creation (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_creation_n_file_exists_with_invalid_contents (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_keys (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_modification (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_not_existing (test.test_dbm.TestCase-dbm.dumb) ... ok test_anydbm_read (test.test_dbm.TestCase-dbm.dumb) ... ok test_error (test.test_dbm.TestCase-dbm.dumb) ... ok ====================================================================== ERROR: test_anydbm_creation (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/asottile/workspace/cpython/Lib/test/test_dbm.py", line 73, in test_anydbm_creation self.read_helper(f) File "/home/asottile/workspace/cpython/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 (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/asottile/workspace/cpython/Lib/test/test_dbm.py", line 88, in test_anydbm_modification self.read_helper(f) File "/home/asottile/workspace/cpython/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 (test.test_dbm.TestCase-dbm.ndbm) ---------------------------------------------------------------------- Traceback (most recent call last): File "/home/asottile/workspace/cpython/Lib/test/test_dbm.py", line 94, in test_anydbm_read self.read_helper(f) File "/home/asottile/workspace/cpython/Lib/test/test_dbm.py", line 114, in read_helper self.assertEqual(self._dict[key], f[key.encode("ascii")]) KeyError: b'0' ---------------------------------------------------------------------- Ran 27 tests in 0.084s FAILED (errors=3) test test_dbm failed test_dbm failed 1 test failed: test_dbm Total duration: 112 ms Tests result: FAILURE ``` |
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| msg285082 - (view) | Author: Anthony Sottile (asottile) * | Date: 2017-01-09 23:37 | |
Stepping through the code, it seems under ndbm it is creating a file with a '.db' extension:
```
(Pdb) list
47 'g': b'intended',
48 }
49
50 def init_db(self):
51 import pdb; pdb.set_trace()
52 -> with dbm.open(_fname, 'n') as f:
53 for k in self._dict:
54 f[k.encode("ascii")] = self._dict[k]
55
56 def keys_helper(self, f):
57 keys = sorted(k.decode("ascii") for k in f.keys())
(Pdb) n
> /home/asottile/workspace/cpython/Lib/test/test_dbm.py(53)init_db()
-> for k in self._dict:
(Pdb) os.listdir('.')
['@test_8371_tmp.db']
(Pdb) _fname
'@test_8371_tmp'
```
|
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| msg285083 - (view) | Author: Anthony Sottile (asottile) * | Date: 2017-01-09 23:48 | |
That doesn't seem to be the problem though, that occurs in both the successful and failure case |
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| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:57:56 | admin | set | github: 64293 |
| 2017-01-09 23:48:20 | asottile | set | messages: + msg285083 |
| 2017-01-09 23:37:13 | asottile | set | messages: + msg285082 |
| 2017-01-09 23:29:05 | asottile | set | nosy:
+ asottile messages: + msg285081 versions: + Python 3.5, Python 3.6 |
| 2014-04-30 18:37:59 | ethan.furman | set | status: open -> closed messages: + msg217639 |
| 2014-04-30 17:05:11 | jcea | set | nosy:
+ jcea messages: + msg217630 |
| 2013-12-29 16:48:41 | ethan.furman | set | messages: + msg207080 |
| 2013-12-29 16:46:38 | ethan.furman | create | |