Shed Skin 0 9

Shed Skin 0 9

I have just released version 0.9 of Shed Skin, a restricted-Python to C++ compiler. Looking at the state of things, a 1.0 version is probably not far off. There will probably be several 0.9.x releases first, though.

There were two issues blocking a 1.0 release in my mind, both of which seem to have been fixed with this release.

First, I was not completely happy yet with the type inference scalability. With 0.9, there has been another dramatic improvement in this regard. For example, the C64 emulator is analyzed 10 times faster now (about 3,000 lines in 2 minutes on my PC). But most other example programs are now analyzed much faster. It now seems a realistic option to compile a 10,000 line program.

Second, there were some long standing nasty issues with combining incompatible types (such as for [[1.0]] == [[1]], we are comparing different types). Shed Skin 0.9 includes a new framework for dealing with these issues, and the problem seems mostly solved at this point.

There were also some very nice performance optimizations for this release. Francois Boutines greatly optimized file I/O. Complex numbers are now copy-by-value, hence massively faster. And the idiomatic construct for .., .. in somedict.iteritems() should be a lot faster as well now. Thanks to Andreas van Cranenburgh for triggering the latter (as well as some of the type inference improvements) with a nice new example program, a natural language parser.

Shed Skin 0.9 also supports three new modules. Francois Boutines added support for the mmap module. Fahrzin Hemmati added support for binascii. And Tony Veijalainen added support for colorsys.

Further, there has been a massive amount of fixes. Thanks to Jason Ye for triggering several of these. Brent Pedersen fixed some set issues. Francois Boutines fixed a string comparison bug involving , and improved universal mode for files. Joris van Zwieten sent in the magic code to only print tracebacks (shedskin -x) for uncaught exceptions.

As usual, more details can be found in the release notes.

In the meantime, Paul Boddie has been at work trying to get Shed Skin 0.9 accepted as an official Debian package. It is already included with Fedora (thanks to Thomas Spura) and some other distributions, but Im a Debian/Ubuntu user myself, so I would be really pleased to see this happen.


Shed Skin 0 9

My Friday Five Week 9

My Friday Five Week 9

Yay!  Its Friday!  Dont you just love Fridays?  I do!  Well, its also a new year.  And at the top of my to-do list this year is to be more organized.  I use to be super organized but Ive let it slip the last few years.  It actually went downhill when we moved in to this house.  And there are many excuses reasons for this.  The house is large (larger than I want but we got such a good deal on it) and I try to take care of it by myself - impossible.  Plus, Im trying to remodel it - by myself (my husband does help but Im home more so it mostly falls on me).  Im the painter, cleaner, and landscaper - all while raising four kids and all that entails.  I just run out of time and energy to do it all.  But this year thats going to change.  Im making it a priority to get back to my organizational roots.  Here are some of the tips I found on Pinterest to help me.  And maybe some of these tips will help you too!

1)  Im going to use this Declutter Calendar - 

Beth from My Simpler Life created a one day at a time declutter guide.  I think I can handle one chore a day! It doesnt feel so overwhelming when its broken down into small chunks.  And think about how great the house will function by the end of the year!

2)  I dont wear much make-up, but when I saw this idea, I fell in love.  A make-up magnetic board - 

Laura from Laura Thoughts created this using an old thrift store frame (you know how much I love thrift store stuff) and some magnets.  Awesome.  Its so easy to see everything!  And a very inexpensive way to organize all of your make-up!

3)  Speaking of inexpensive...how about using your old bread bag tags to label cords?  I love this - 

I cant tell you how many times I have crawled under my desk to unplug something and couldnt figure out which cord to pull!  Ugh.  This is so simple - and free.  I found this idea over at Unplggd.  Definitely on my to-do list this year.

4)  If you thought that keeping bread tags was the only thing you should be saving, you were wrong.  Save all of your old cereal boxes too.  They make great magazine holders - 

I love when something so beautiful is also so cheap!  Head over to Sew Many Ways to see how Karen made this magazine holder.  I really want to make a few of these from my empty Lucky Charms boxes...

5)  Heres a great twist on pasta storage - using old Pringles cans - 

I found this on Non Obvious Solutions on tumbler (I love the name - it makes me feel better that I didnt think of this stuff myself!).  And if I get around to doing this, I would dress up the cans a bit.  And maybe add a chalkboard rectangle to label the contents since it isnt see-through.  Just to be a little more organized.  ;-)

Are you inspired to get organized?

p.s.  I found out this morning that I got booted from the One Month To Win It competition.  Sad.  If you stopped over to vote for me, thanks!  And if you still havent been over there - you really should check it out!  The women have amazing talent.  Next week, Ill share the projects that I submitted in more detail.  Well, it was fun while it lasted!  :-)

My Friday Five Week 9

Get Cheap Free 9 X 12 Shed Plans

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Shed Skin 0 9 1

Shed Skin 0 9 1

I have just released version 0.9.1 of Shed Skin, a restricted-Python (2.4-2.6) to C++ compiler. This is a maintenance release, so no new major features were added. Most interesting perhaps are optimizations for itertools.product and str.join. Other than that, its mostly bugfixes and a new (hq2x image scaling) example. Please see the release notes for more details.

In the meantime, Paul Boddie has succeeded in getting Shed Skin 0.9 accepted into the Debian repositories, which is awesome for me personally.


Shed Skin 0 9 1

Shed Skin 0 0 5 9

Shed Skin 0 0 5 9

I have just released Shed Skin 0.0.5.9. Its almost where I want it to be
for 0.0.6. What remains to be coded is some kind of connection to the
standard library (probably a simple one at first: working only for
opaque handlers). I also want to improve cases where ints and floats
are mixed, since this is quite common. Some major changes:

-basic exception handling

(support for custom ones, and for some builtins such as ValueError,
KeyError and AssertionError; this will allow for implementation of
iterator objects later on)

-some basic inheritance

(no multiple inheritance yet, or weird stuff; this enabled me to add
the 340-line pygmy raytracer to the test set. it becomes about 40
times faster here..)

-keyword arguments

(this has not been tested very well yet - let me know about any problems)

-many missing minor set features, thanks to reports by bearophile

(it should be practically complete now. the whole set of builtins is
nearing completion :D time to start optimizing stuff..)

-many, many bugfixes again, again mostly thanks to bearophile

I added four new big programs to the test set that (with some minor
modifications) work now: a tic-tac-toe player for arbitrary size
boards, a simple genetics algorithm, a linear algebra program and the
mentioned raytracer. Finally, the README has been improved again,
though its still pretty bad. After the release of 0.0.6 I plan to
create a web site with performance comparisons between CPython, Psyco
and Shed Skin (perhaps even PyPy :P), because quite some interesting
programs compile now, and Shed Skin is usually a lot faster than Psyco, except when Python builtins are the bottleneck. I guess some more STL magic is required here..

Let the small code fragments that fail flowing!


Shed Skin 0 0 5 9

Shed Skin 0 9 3

Shed Skin 0 9 3

I have just released version 0.9.3 of Shed Skin, a restricted-Python (2.4-2.6) to C++ compiler. This is the third maintenance release since 0.9, and as such there were (almost) no major changes.

For the full list of changes since 0.9.2, please see the release notes.

Five interesting new examples were added for this release, bringing the total to 72. Most interesting to me are Pygasus, a 1,500 line NES emulator that is able to play mario bros (Maciek "Mistrall" ?uk), as well as a pure Python implementation of timsort, the famous Python sorting algorithm (ported from java to python by Dan Stromberg).

In the meantime, the C64 emulator (see my earlier posts) has grown to about 6,000 lines of code (sloccount) but is still compiling fine (though it takes about 10 minutes here, still not that bad). Im tempted to update the scalability graph I posted earlier.

In any case, I would like to thank the authors of the new example programs for sharing their code (maciek, dan, thomas, piotr, keegan) and those who provided improvements (danny milosavljevic) or feedback since 0.9.2.


Shed Skin 0 9 3

Shed Skin 0 9 2

Shed Skin 0 9 2

I have just released version 0.9.2 of Shed Skin, a restricted-Python (2.4-2.6) to C++ compiler. This is the second maintenance release since 0.9, so no new major features were added.

The biggest improvement is probably some optimizations for the array module. Other than this, the changes are mostly unrelated minor optimizations and bug fixes. Please see the release notes for more detail.

Three nice new examples were also added for this release, bringing the number of examples to 67, with a total linecount of about 17,000 lines (sloccount): a "stereo vision" program, and two Rubiks cube solvers.


Shed Skin 0 9 2