[SciPy-user] Weave on W2K problems -- more clues

Christopher Fonnesbeck fonnesbeck at linuxmail.org
Mon Nov 18 16:43:29 EST 2002 

Thanks this is helping. I have loaded MinGW, and it now seems to find g++, but the problem it has is with dllwrap. Even though dllwrap is in the MinGW bin directory, I get the following:

======================================================================
ERROR: result[1:-1,1:-1] = (b[1:-1,1:-1] + b[2:,1:-1] + b[:-2,1:-1]
----------------------------------------------------------------------
Traceback (most recent call last):
  File "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py", line 150, in check_5point_avg_2d
    self.generic_2d(expr)
  File "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py", line 124, in generic_2d
    mod_location)
  File "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py", line 80, in generic_test
    blitz_tools.blitz(expr,arg_dict,{},verbose=0) #,
  File "T:\Python22\Lib\site-packages\weave\blitz_tools.py", line 72, in blitz
    type_converters = converters.blitz,
  File "T:\Python22\Lib\site-packages\weave\inline_tools.py", line 439, in compile_function
    verbose=verbose, **kw)
  File "T:\Python22\Lib\site-packages\weave\ext_tools.py", line 332, in compile
    verbose = verbose, **kw)
  File "T:\Python22\Lib\site-packages\weave\build_tools.py", line 221, in build_extension
    setup(name = module_name, ext_modules = [ext],verbose=verb)
  File "T:\Python22\lib\distutils\core.py", line 157, in setup
    raise SystemExit, "error: " + str(msg)
CompileError: error: command 'dllwrap' failed with exit status 1

and os.system('dllwrap') confirms that dllwrap is there and functioning.

Thanks.
ChrisF

----- Original Message -----
From: "eric jones" <eric at enthought.com>
Date: Mon, 18 Nov 2002 13:57:37 -0600 
To: <scipy-user at scipy.net>
Subject: RE: [SciPy-user] Weave on W2K problems -- more clues


> > 
> > I also get the following in the test output:
> > 
> > WARNING: failed to build import library for gcc. Linking will fail.
> 
> Looking at build_tools.py, I think this is associated with the use of
> cygwin instead of mingw.  Mingw has a tool called "dlltool" that is used
> in converting the python22.lib to a libpython22.a file.  It doesn't look
> like cygwin has the same tools.
> 
> Can you use mingw instead of cygwin and see if it solves your problems?
> You'll need to use the version based on 2.95.3 (mingw1.1 I believe), as
> weave doesn't work with the latest version. 
> 
> > E
> > warning: specified build_dir '_bad_path_' does not exist or is not
> > writable. Trying default locations
> 
> This warning is supposed to happen -- it is part of a unit test.
> 
> > 
> > Not sure if that helps with respect to the g++ problems
> 
> Hopefully moving to mingw fixes your problems.
> 
> Good luck,
> Eric
> 
> > 
> > 
> > 
> > ----- Original Message -----
> > From: "eric jones" <eric at enthought.com>
> > Date: Fri, 15 Nov 2002 16:31:29 -0600
> > To: <scipy-user at scipy.net>
> > Subject: RE: [SciPy-user] Weave on W2K problems
> > 
> > 
> > > Hey Chris,
> > >
> > > > I am trying to set up weave/scipy on a very fast machine,
> > > unfortunately
> > > > running W2K, rather than *NIX, and am having a couple of problems
> with
> > > > weave.  First, although the scipy binary puts its weave components
> in
> > > > $PYTHONHOME\Lib\site-packages as I would expect, the full weave
> binary
> > > > puts its stuff in $PYTHONHOME.
> > >
> > > This may be because the standalone version was built with 2.1.3 and
> I
> > > believe it defaulted to putting things in $PYTHONHOME on windows
> > > distributions.  This was corrected in Python2.2 (which is used to
> build
> > > SciPy).
> > >
> > > > Second, though I have the cygwin gcc
> > > > compiler (with g++ also) installed and listed first on my user
> path, I
> > > get
> > > > the following error claiming g++ cannot be found.
> > > >
> > > >
> ======================================================================
> > > > ERROR: result[1:-1,1:-1] = (b[1:-1,1:-1] + b[2:,1:-1] +
> b[:-2,1:-1]
> > > >
> ----------------------------------------------------------------------
> > > > Traceback (most recent call last):
> > > >   File
> > > "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py",
> > > > line 150, in check_5point_avg_2d
> > > >     self.generic_2d(expr)
> > > >   File
> > > "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py",
> > > > line 124, in generic_2d
> > > >     mod_location)
> > > >   File
> > > "T:\Python22\Lib\site-packages\weave\tests\test_blitz_tools.py",
> > > > line 80, in generic_test
> > > >     blitz_tools.blitz(expr,arg_dict,{},verbose=0) #,
> > > >   File "T:\Python22\Lib\site-packages\weave\blitz_tools.py", line
> 72,
> > > in
> > > > blitz
> > > >     type_converters = converters.blitz,
> > > >   File "T:\Python22\Lib\site-packages\weave\inline_tools.py", line
> > > 439, in
> > > > compile_function
> > > >     verbose=verbose, **kw)
> > > >   File "T:\Python22\Lib\site-packages\weave\ext_tools.py", line
> 332,
> > > in
> > > > compile
> > > >     verbose = verbose, **kw)
> > > >   File "T:\Python22\Lib\site-packages\weave\build_tools.py", line
> 221,
> > > in
> > > > build_extension
> > > >     setup(name = module_name, ext_modules = [ext],verbose=verb)
> > > >   File "T:\Python22\lib\distutils\core.py", line 157, in setup
> > > >     raise SystemExit, "error: " + str(msg)
> > > > CompileError: error: command 'g++' failed: No such file or
> directory
> > > >
> > > >
> ----------------------------------------------------------------------
> > > > Ran 184 tests in 250.797s
> > > >
> > > > FAILED (errors=1)
> > > > <unittest.TextTestRunner instance at 0x00D90AD0>
> > > >
> > > > I need this stuff to work in order to make my dynamic
> optimizations
> > > run
> > > > faster, so any assistance is most welcome.
> > >
> > > It looks like all the weave tests passed accept for the one blitz
> test.
> > > If your not planning on using blitz, then I think you may be OK.
> > >
> > > I just tried running weave with my cygwin installation with:
> > >
> > >
> ----------------------------------------------------------------------
> > > Ran 184 tests in 74.055s
> > >
> > > FAILED (failures=1, errors=22)
> > >
> > > The blitz() test failed but not like yours.  I actually got
> incorrect
> > > results.  The 22 errors were all of the MSC++ tests failing because
> they
> > > couldn't find the C++ file they were asked to compile:
> > >
> > > sc_abccabed66f253b594f63a36ae4b0cdb0.cpp
> > > fatal error C1083: Cannot open source file:
> > > '/cygdrive/c/DOCUME~1/eric/LOCALS~1/
> > > Temp/@1336.2/sc_abccabed66f253b594f63a36ae4b0cdb0.cpp': No such file
> or
> > > directory
> > > E
> > >
> > > I'll have to explore these.
> > >
> > > As for the error of not finding g++, I don't know why it is
> happening.
> > > If it is in the path and you can execute the following:
> > >
> > > eric at ERICDESKTOP ~/wrk
> > > $ python
> > > Python 2.2.1 (#1, Jun 25 2002, 10:55:46)
> > > [GCC 2.95.3-5 (cygwin special)] on cygwin
> > > Type "help", "copyright", "credits" or "license" for more
> information.
> > > >>> import os
> > > >>> os.system('g++')
> > > g++: No input files
> > > 256
> > >
> > > weave shouldn't complain -- especially since it appears to be
> finding it
> > > in many of the other 184 tests.
> > >
> > > Hope something here helps,
> > > eric
> > >
> > >
> > >
> > >
> > > >
> > > > Thanks,
> > > > Chris Fonnesbeck
> > > > --
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