[Python-Dev] Difference in RE between 3.2 and 3.3 (or Aaron Swartz memorial) (original) (raw)

Matěj Cepl mcepl at redhat.com
Wed Mar 6 14:09:54 CET 2013

On 2013-02-26, 16:25 GMT, Terry Reedy wrote:

On 2/21/2013 4:22 PM, Matej Cepl wrote:

as my method to commemorate Aaron Swartz, I have decided to port his html2text to work fully with the latest python 3.3. After some time dealing with various bugs, I have now in my repo https://github.com/mcepl/html2text (branch python3) working solution which works all the way to python 3.2 (inclusive; https://travis-ci.org/mcepl/html2text). However, the last problem remains. This

  • Run this command:
    • ls -l *.html
  • ?
    •  should lead to * Run this command: ls -l *.html * ? but it doesn’t. It leads to this (with python 3.3 only) * Run this command: ls -l *.html * ? Does anybody know about something which changed in modules re or http://docs.python.org/3.3/whatsnew/changelog.html between 3.2 and 3.3, which could influence this script? Search the changelob or 3.3 misc/News for items affecting those two modules. There are at least 4. http://docs.python.org/3.3/whatsnew/changelog.html It is faintly possible that the switch from narrow/wide builds to unified builds somehow affected that. Have you tested with 2.7/3.2 on both narrow and wide unicode builds?

    So, in the end, I have went the long way and bisected cpython to find the commit which broke my tests, and it seems that the culprit is http://hg.python.org/cpython/rev/123f2dc08b3e so it is clearly something Unicode related.

    Unfortunately, it really doesn't tell me what exactly is broken (is it a known regression) and if there is known workaround.
    Could anybody suggest a way how to find bugs on http://bugs.python.org related to some particular commit (plain search for 123f2dc0 didn’t find anything).

    Any thoughts?

    Matěj

    P.S.: Crossposting to python-devel in hope there would be somebody understanding more about that particular commit. For that I have also intentionally not trim the original messages to preserve context.

    -- http://www.ceplovi.cz/matej/, Jabber: mceplceplovi.cz GPG Finger: 89EF 4BC6 288A BF43 1BAB 25C3 E09F EF25 D964 84AC

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