PyPy Tokyo sprint 23/4 - 29/4

Anders Chrigström at
Mon Mar 27 15:36:03 CEST 2006

Tokyo PyPy Sprint: 23rd - 29th April 2006

The next PyPy sprint is scheduled to take place 23rd- 29th April 2006
(Sunday-Saturday) in Akihabara, Tokyo, Japan. We will together with
FSIJ (Free Software Initiative of Japan) aim to promote Python and
PyPy.  We therefor invite Japanese hackers knowledgeable in Python to
join our sprint!  We'll give newcomer-friendly introductions. To learn
more about the new Python-in-Python implementation look here:

For this sprint we are particularly interested in meeting and coding on
PyPy together
with interested Japanese Python hackers. Please register your interest
at pypy-sprint at
as soon as possible and we will help with any questions regarding
getting started, pointing
to relevant documentation etc.

The PyPy team is curious and interested in the experience of hacking
code for embedded devices
and would love to discuss and get feedback on optimisation efforts and
the current state of PyPy.

Goals and topics of the sprint

Possible suggestions for topics are:

   - Work on gensqueak (our Squeak backend) or possibly other backends.

   - Implementing Python 2.5 features in PyPy.

   - Progress further on an 'rctypes' module aiming at letting us use a
     implementation of an extension module from the compiled pypy-c.

   - Writing ctypes implementations of modules to be used by the above

   - Experimenting and improving performance of our garbage collectors.

   - Experiment with PyPy flexibility or other aspects of the

   - Possibly experiment with writing modules translatable for use both
     in PyPy and CPython.

   - Whatever participants want to do with PyPy or particular areas
     of PyPy (please send suggestions to the mailing list before to
allow us to plan
     and give feedback)

Location & Accomodation

The sprint will be held at National Institute of AIST
  (National Institute of Advanced Industrial Science and Technology,, Akihahabara (the technical gadget
district in Tokyo). Yutaka Niibe is our contact person there,
helping with arranging facilities. Niibe is the chairman of FSIJ and
they have
invited us to sprint in Tokyo and we are very grateful for the help and
we have recieved so far.

The facilities we are sprinting in are located here:

The actual address is:
Akihabara Dai Bldg , 1-18-13 Sotokanda, Chiyoda-ku, Tokyo 101-0021 Japan
Phone: +81-3-5298-4729

Hotel areas - we are recommended to book hotels in Ueno and Asakusa (old
from those areas there are only two metro stops to Akihabara. Please
note that
hotelrooms in Tokyo are often very small.
hotel to sprint location) (Ueno) (Asakusa)   (second nearest, but no english

Here is a url for booking hotels with not too unreasonable rates (see map):

For more general tourist information about travelling to Japan and Tokyo
- please see:  (really useful information regarding
airfares, hotels, currency, phones etc etc)

Comments on the weather: In end April it is ca 20 degrees Celsius.

Exact times

The public PyPy sprint is held Sunday 23rd - Saturday 29th April 2006.
Hours will be from 10:00 until people have had enough.  It's a good idea
to arrive a day before the sprint starts and leave a day later.
Sometimes people
cannot stay for the whole sprint - you are welcome even if you can only stay
for a day or a few days.

Sunday: Starting at 10:00. This day is focused on getting to know PyPy
enought to
start to participate. We will hold a PyPy tutorial and an architectural
Planning meeting for the work to be done during the week and grouping of
developers (pairs
or groups mixing new participants with core developers).

Dinner in the evening (Yutaka will arrange a place for us to go to).

Monday-Tuesday: Starting at 10:00 with status meetings. Possible regrouping
depending on the interest and progress of the various teams.

Wednesday: Breakday (coding is allowed although we recommend taking a

Thursday-Saturday: Starting at 10:00 with status meetings. Possible
depending on the interest and progress of the various teams. Ending on
Saturday with
a Closure session - summing of the work and planning work to be done
until the next sprint.

Network, Food, currency

We will have access to WiFi at AIST - please make sure you have wlan

Electricity outlets: 100V (adapters needed for european standard).

Currency is Japanese yen. There are Citibank cash machines that
accepts cash withdrawals from the major cards such as VISA and Mastercard.
But it is a good idea to bring cash.

Also note that cell phones (european) are not very compatible with the
network. There are possibilities for 3G phones to hire a phone and put
your simcard
in there. At the airport (both Kansai and Narita) there are information
and places
were this can be arranged (to a cost of course).

Food: well - japanese food is great (wether it is sushi, sashimi,
tempura, sukiyaki, teriyaki....
Eating out is not that much differently prized
than any large european town. There are of course restaurants serving
other food than japanese (chinese, korean, McDonalds ;-).
Please also note that vegetables and fruit is quite expensive in Japan.

For more information - see tourist url:s above.

Registration etc.pp.

Please subscribe to the `PyPy sprint mailing list`_, introduce yourself
and post a note that you want to come.  Feel free to ask any questions
there!  There also is a separate `Tokyo people`_ page tracking who is
already thought to come.  If you have commit rights on codespeak then
you can modify yourself a checkout of

.. _`PyPy sprint mailing list`:
.. _`Tokyo people`:

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