Meeting 04/09/2010

When

• 4th of September, 2010. Starting at 10:00am.
• ​Google Calendar entry

What

Port Genshi to Python 3.

Where

Yola offices, 35 Hope Street ​map link. (Google Maps still thinks WebAfrica lives there.)

If you can't be present in person you can join us on the #ctpug channel on the ​Atrum IRC network. Some of us will also likely be present on #python-genshi on the Freenode IRC network.

Notes

• Simon Cross will apply to the PSF for fundng
  • Money to be spent on beer, pizzas, coffee and some memorabilia (coffee mugs currently the odds-on favourite).
• We are unlikely to finish in a single sprint - Current plan is to work on some issues during the week after the sprint and have another session on the 11th.
  • Plan is to ignore C accelerator for the first pass, and port it if time allows
  • Aim for a single code-base, otherwise distribute and 2to3 solution if single code-base gets too complicated
• Expected number of attendees: 6-10

Preparation

• Porting discussion started on Genshi mailing list ​link.
  • No objections raised so far.
  • Jeroen (one of the Genshi committers) has offered to help get our code into Genshi svn when we're done (either as a branch or in trunk as appropriate).
• Application for PSF funding successful.
• Announcement submitted to Python Sprints (​link).
• Mugs designed and sent to printers.
• Mugs collected.
• Hg repository set up at ​http://bitbucket.org/hodgestar/genshi-py3k.

Results

• VICTORY!
• Hg default branch runs and passes all tests on Python 2.4 to 2.6.
• Branch passes all tests on Python 3.1 after running "python3 setup.py build" (using Distribute add-ons to call 2to3).
• Branch appears to work on Python 3.2 too.
• Several examples run and tested on Python 3.1 (other not run because they rely on outside packages being ported to Python 3).
• C module (_speedups) ported and appears to work.
• Rough port of ​FormEncode to Python 3 performed by accident (see link below).
• Some ​PyWeek 11 judging while waiting for 2to3 to run.
• Nine people attended.

Diffstats

$ hg diff -g -r 722 | diffstat
 .hgignore                           |    4 +
 MANIFEST.in                         |    1 
 README.txt                          |    5 +
 doc/common/doctools.py              |    8 +-
 examples_to_py3k.sh                 |    8 ++
 fixes/fix_unicode_in_strings.py     |   17 ++++
 genshi/_speedups.c                  |   77 +++++++++++++++++--
 genshi/compat.py                    |  115 +++++++++++++++++++++++++++++
 genshi/core.py                      |   25 ++++--
 genshi/filters/html.py              |    8 +-
 genshi/filters/i18n.py              |   35 +++++---
 genshi/filters/tests/__init__.py    |    4 -
 genshi/filters/tests/i18n.py        |  103 ++++++++++++++++----------
 genshi/filters/tests/test_html.py   |  142 ++++++++++++++++++------------------
 genshi/filters/tests/transform.py   |   20 +++--
 genshi/filters/transform.py         |   72 +++++++++++-------
 genshi/input.py                     |   33 +++++---
 genshi/output.py                    |    2 
 genshi/template/astutil.py          |   57 ++++++++++----
 genshi/template/base.py             |   11 +-
 genshi/template/directives.py       |    6 -
 genshi/template/eval.py             |   67 +++++++++-------
 genshi/template/loader.py           |    4 -
 genshi/template/plugin.py           |    2 
 genshi/template/tests/directives.py |    4 -
 genshi/template/tests/eval.py       |   56 ++++++++------
 genshi/template/tests/loader.py     |    4 -
 genshi/template/tests/markup.py     |    4 -
 genshi/template/tests/plugin.py     |    6 -
 genshi/template/text.py             |    4 -
 genshi/tests/core.py                |   32 +++-----
 genshi/tests/input.py               |   34 ++++----
 genshi/tests/output.py              |    4 -
 genshi/util.py                      |   29 -------
 setup.py                            |   31 ++++++-
 35 files changed, 686 insertions(+), 348 deletions(-)

Post Sprint

• ​Submission of patch to Genshi mailing list
• Small patch to make Trac compatible with Genshi Py3k branch​ (committed to Trac)
• Patch to make Trac test suite pass with Genshi Py3k branch​ (awaiting commit to Trac)
• ​Py3k branch merged into Genshi trunk

Links

• ​Announcement on Python Sprints blog
• ​Addition of Yola to Python Sprint locations
• ​Rough port of FormEncode to Python 3

Mugs

Sprinters

• Wall: Genshi's test suite passing under Python 3 (with Tarantula Nebula behind)
• Back (left-to-right): David, Graham, Stefano, Jeremy, Neil
• Front (left-to-right): Simon, Nganpet, Adrianna