Issue 4874: decoding functions in _codecs module accept str arguments (original) (raw)

Created on 2009-01-07 23:48 by pitrou, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Files
File name Uploaded Description Edit
_codecs_bytes-2.patch vstinner,2009-01-17 01:31
mbdecode-unicode.patch pitrou,2009-01-22 11:04
Messages (12)
msg79384 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2009-01-07 23:48
The following function calls should raise a TypeError instead. Encoding functions are fine (they only accept str). >>> import codecs >>> codecs.utf_8_decode('aa') ('aa', 2) >>> codecs.utf_8_decode('éé') ('éé', 4) >>> codecs.latin_1_decode('éé') ('éé', 4)
msg79387 - (view) Author: STINNER Victor (vstinner) * (Python committer) Date: 2009-01-08 00:59
Patch replacing "s*" parsing format by "y*" for: - utf_7_decode() - utf_8_decode() - utf_16_decode() - utf_16_le_decode() - utf_16_be_decode() - utf_16_ex_decode() - utf_32_decode() - utf_32_le_decode() - utf_32_be_decode() - utf_32_ex_decode() - unicode_escape_decode() - raw_unicode_escape_decode() - latin_1_decode() - ascii_decode() - charmap_decode() - mbcs_decode() Using run_tests.sh, all tests are ok (with 19 skipped tests). I guess that there is not tests for all these functions :-/ Note: codecs documentation was already correct: .. method:: Codec.decode(input[, errors]) (...) *input* must be a bytes object or one which provides the read-only character buffer interface -- for example, buffer objects and memory mapped files.
msg79402 - (view) Author: Marc-Andre Lemburg (lemburg) * (Python committer) Date: 2009-01-08 09:29
On 2009-01-08 01:59, STINNER Victor wrote: > STINNER Victor <victor.stinner@haypocalc.com> added the comment: > > Patch replacing "s*" parsing format by "y*" for: > - utf_7_decode() > - utf_8_decode() > - utf_16_decode() > - utf_16_le_decode() > - utf_16_be_decode() > - utf_16_ex_decode() > - utf_32_decode() > - utf_32_le_decode() > - utf_32_be_decode() > - utf_32_ex_decode() > - latin_1_decode() > - ascii_decode() > - charmap_decode() > - mbcs_decode() These are fine. > - unicode_escape_decode() > - raw_unicode_escape_decode() These changes are in line with their C API codec interfaces as well, but those particular codecs could well also be made to work on Unicode input, since unescaping can well be applied to Unicode as well. I'll probably open a new item for this. > Using run_tests.sh, all tests are ok (with 19 skipped tests). I guess > that there is not tests for all these functions :-/ The mbcs codec is only available on Windows. All others are tested by test_codecs.py. Which ones are skipped in your case ? > Note: codecs documentation was already correct: > > .. method:: Codec.decode(input[, errors]) > (...) > *input* must be a bytes object or one which provides the read-only > character > buffer interface -- for example, buffer objects and memory mapped > files. That's not entirely correct: codecs are allowed to accept any object type and can also return any object type. It up to them to decide, e.g. a codec may accept both bytes and Unicode input and always generate Unicode output when decoding. I guess I have to review those doc changes...
msg79741 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2009-01-13 13:14
The patch is probably fine, but it would be nice to add some unit tests for the new behaviour.
msg79843 - (view) Author: Marc-Andre Lemburg (lemburg) * (Python committer) Date: 2009-01-14 08:40
On 2009-01-13 14:14, Antoine Pitrou wrote: > Antoine Pitrou <pitrou@free.fr> added the comment: > > The patch is probably fine, but it would be nice to add some unit tests > for the new behaviour. +1 from my side. Thanks for the patch, Viktor.
msg79991 - (view) Author: STINNER Victor (vstinner) * (Python committer) Date: 2009-01-17 01:31
New patch: - Leave unicode_escape_decode() and raw_unicode_escape_decode() unchanged (still accept unicode string) - Test changes (reject unicode for most codecs decode functions) - Write tests for unicode_escape_decode() and raw_unicode_escape_decode() (there was no test for these functions)
msg80362 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2009-01-22 10:32
Committed in r68855, r68856. Thanks!
msg80363 - (view) Author: Amaury Forgeot d'Arc (amaury.forgeotdarc) * (Python committer) Date: 2009-01-22 10:46
IMO, Modules/cjkcodecs/multibytecodec.c should be changed as well.
msg80364 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2009-01-22 10:55
Right, I hadn't thought of that.
msg80365 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2009-01-22 11:04
"Fixing" multibytecodec.c produces a TypeError in the following test: def test_errorcallback_longindex(self): dec = codecs.getdecoder('euc-kr') myreplace = lambda exc: ('', sys.maxsize+1) codecs.register_error('test.cjktest', myreplace) self.assertRaises(IndexError, dec, 'apple\x92ham\x93spam', 'test.cjktest') TypeError: decode() argument 1 must be bytes or buffer, not str Since the test is meant to test recovery from a misbehaving callback, I guess the type of the input string is not really important and can be changed to a bytes string instead. What do you think? (in any case, here is a patch)
msg80366 - (view) Author: Amaury Forgeot d'Arc (amaury.forgeotdarc) * (Python committer) Date: 2009-01-22 11:56
The patch looks good. I think the missing b in test_errorcallback_longindex is an overlook when the tests were updated for py3k. You are right to change the test.
msg80367 - (view) Author: Antoine Pitrou (pitrou) * (Python committer) Date: 2009-01-22 12:25
Committed in r68857, r68858.
History
Date User Action Args
2022-04-11 14:56:43 admin set nosy: + benjamin.petersongithub: 49124
2009-01-22 12:25:56 pitrou set status: open -> closedresolution: fixedmessages: +
2009-01-22 11:56:18 amaury.forgeotdarc set messages: +
2009-01-22 11:04:50 pitrou set files: + mbdecode-unicode.patchmessages: +
2009-01-22 10:55:57 pitrou set status: closed -> openresolution: fixed -> (no value)messages: +
2009-01-22 10:46:11 amaury.forgeotdarc set nosy: + amaury.forgeotdarcmessages: +
2009-01-22 10:32:07 pitrou set status: open -> closedresolution: accepted -> fixedmessages: +
2009-01-22 10:10:20 pitrou set assignee: pitrouresolution: accepted
2009-01-17 01:31:48 vstinner set files: - _codecs_bytes.patch
2009-01-17 01:31:42 vstinner set files: + _codecs_bytes-2.patchmessages: +
2009-01-14 08:40:04 lemburg set messages: +
2009-01-13 13:14:19 pitrou set messages: +
2009-01-08 09:29:20 lemburg set nosy: + lemburgmessages: +
2009-01-08 00:59:08 vstinner set files: + _codecs_bytes.patchkeywords: + patchmessages: + nosy: + vstinner
2009-01-07 23:48:15 pitrou create