[Numpy-discussion] Weave Ext_tools converters not working??

Søren Nielsen soren.skou.nielsen@gmail....
Mon Nov 17 08:42:39 CST 2008


Can anyone explain why this fails? This piece of code runs perfectly using
weave.inline and type_converters = blitz..

Obviously it can't handle 2D arrays anymore. It's just a stupid example to
illustrate that.

Thanks,
Soren

CODE :
------------------------------------------------------------------------------------------------
mod = ext_tools.ext_module('ravg_ext')

test = zeros((5,5))
xlen = 5
ylen = 5

code = """
         int x, y;

         for( x = 0; x < xlen; x++)
         {
                for( y = 0; y < ylen; y++)
                {
                    test(x,y) = 2;
                }
         }

        """

ravg = ext_tools.ext_function('ravg', code, ['xlen', 'ylen', 'test'])
mod.add_function(ravg)
mod.compile(compiler = 'gcc')

RESULT:
------------------------------------------------------------------------------------------------
C:\Temp\ravg_ext.cpp: In function `PyObject* ravg(PyObject*, PyObject*,
PyObject*)':
C:\Temp\ravg_ext.cpp:654: error: `test' cannot be used as a function
C:\Temp\ravg_ext.cpp:641: warning: unused variable 'Ntest'
C:\Temp\ravg_ext.cpp:642: warning: unused variable 'Stest'
C:\Temp\ravg_ext.cpp:643: warning: unused variable 'Dtest'

Traceback (most recent call last):
  File "C:\Temp\ravg_extension.py", line 132, in ?
    build_ravg_extension()
  File "C:\Temp\ravg_extension.py", line 125, in build_ravg_extension
    mod.compile(compiler = 'gcc')
  File "C:\Python24\Lib\site-packages\scipy\weave\ext_tools.py", line 365,
in compile
    verbose = verbose, **kw)
  File "C:\Python24\Lib\site-packages\scipy\weave\build_tools.py", line 269,
in build_extension
    setup(name = module_name, ext_modules = [ext],verbose=verb)
  File "C:\Python24\Lib\site-packages\numpy\distutils\core.py", line 184, in
setup
    return old_setup(**new_attr)
  File "C:\Python24\Lib\distutils\core.py", line 166, in setup
    raise SystemExit, "error: " + str(msg)
CompileError: error: Command "g++ -mno-cygwin -O2 -Wall
-IC:\Python24\lib\site-packages\scipy\weave
-IC:\Python24\lib\site-packages\scipy\weave\scxx
-IC:\Python24\lib\site-packages\numpy\core\include -IC:\Python24\include
-IC:\Python24\PC -c C:\Temp\ravg_ext.cpp -o
c:\docume~1\ssn\locals~1\temp\ssn\python24_intermediate\compiler_894ad5ed761bb51736c6d2b7872dc212\Releas
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