[Python-Dev] wpython is back

[Cesare Di Mauro]

2009/11/27 Christian Heimes <lists at cheimes.de>

> Cesare Di Mauro wrote:
> >
> > You'll find some at page 28
> > here<
> http://wpython.googlecode.com/files/Beyond%20Bytecode%20-%20A%20Wordcode-based%20Python.pdf
> >
> > ..
> >
> > Mart made more interesting
> > ones<http://www.mail-archive.com/python-dev@python.org/msg43282.html
> >with
> > Unladen benchmarks.
>
> The PDF document sounded interesting and I was tempted to test WPython.
> Unfortunately it doesn't compile on my box:
>
> $ make
> gcc -pthread -c -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall
> -Wstrict-prototypes  -I. -IInclude -I./Include   -DPy_BUILD_CORE -o
> Python/ast.o Python/ast.c
>
>
> Python/ast.c:30: warning: ‘enum _expr_const’ declared inside parameter
> list
> Python/ast.c:30: warning: its scope is only this definition or
> declaration, which is probably not what you want
>
> Python/ast.c:335: warning: ‘enum _expr_const’ declared inside parameter
> list
> Python/ast.c:335: error: parameter 2 (‘constant’) has incomplete type
>
> Python/ast.c: In function ‘Const’:
>
> Python/ast.c:341: error: ‘Const_kind’ undeclared (first use in this
> function)
>
> Python/ast.c:341: error: (Each undeclared identifier is reported only
> once
> Python/ast.c:341: error: for each function it appears in.)
>
> Python/ast.c:342: error: ‘union <anonymous>’ has no member named ‘Const’
>
> Python/ast.c:343: error: ‘union <anonymous>’ has no member named ‘Const’
>
> Python/ast.c: In function ‘set_context’:
>
> Python/ast.c:457: error: ‘Const_kind’ undeclared (first use in this
> function)
>
> Python/ast.c: At top level:
>
> Python/ast.c:591: warning: ‘enum _expr_const’ declared inside parameter
> list
> Python/ast.c:590: error: conflicting types for ‘seq_for_testlist’
>
> Python/ast.c:29: note: previous declaration of ‘seq_for_testlist’ was here
> [...]
>
> $ gcc --version
> gcc (Ubuntu 4.4.1-4ubuntu8) 4.4.1
> $ uname -a
> Linux hamiller 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:05:01 UTC
> 2009 x86_64 GNU/Linux
>
>
I have created a new project at Google Code:
http://code.google.com/p/wpython2/ using Mercurial for the repository.

The master (Python 2.6.4) code is located into the default repository:
https://wpython2.googlecode.com/hg/

The wpython (version 1.0) clone is in:
https://wpython10.wpython2.googlecode.com/hg/

Sources are available in:
http://code.google.com/p/wpython2/downloads/list

wpython 1.0 is an almost complete replacement for Python 2.6.4 (except for
Doc/library.dis.rst, which I'll update later, when I stop adding or changing
opcodes).

I have changed the ASDL grammar (in Parser/Python.asdl) so that there's no
need to overwrite Include/Python-ast.h, and I've added full support for
constants to the AST code (I left Num_kind and Str_kind untouched right now,
but I plan to remove them in the next release, since Const_kind is able to
hold any kind of constant object).

Now you shouldn't have problems compiling it.

Cesare
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