Dear NumPy developers, I was trying to build numpy 2.0.dev and scipy 0.9.dev using numscons 0.12.dev and Python 2.7b2 (32 bit) on Windows 7 64 bit and ran into two problems. First, Python 2.7's UserDict is now a new-style class (http://docs.python.org/dev/whatsnew/2.7.html). Apparently scons 1.2, which is part of numscons, is not compatible with this change and an AttributeError is thrown: AttributeError: NumpyEnvironment instance has no attribute 'SubstInFile': File "D:\numpy-trunk\numpy\core\SConstruct", line 2: GetInitEnvironment(ARGUMENTS).DistutilsSConscript('SConscript') File "C:\Python27\lib\site-packages\numscons\core\numpyenv.py", line 135: build_dir = '$build_dir', src_dir = '$src_dir') File "C:\Python27\lib\site-packages\numscons\scons-local\scons-local-1.2.0\SCons\Script\SConscript.py", line 553: return apply(_SConscript, [self.fs,] + files, subst_kw) File "C:\Python27\lib\site-packages\numscons\scons-local\scons-local-1.2.0\SCons\Script\SConscript.py", line 262: exec _file_ in call_stack[-1].globals File "D:\numpy-trunk\build\scons\numpy\core\SConscript", line 353: target = env.SubstInFile(pjoin(include_dir, '_numpyconfig.h'), Turns out that the env['BUILDERS'] dictionary is empty after the config.Finish() call in SConscript. A workaround is to copy the UserDict.py file from Python27\Lib to numscons\scons-local\scons-local-1.2.0\SCons and change UserDict back to an old-style class: @@ -1,6 +1,6 @@ """A more or less complete user-defined wrapper around dictionary objects.""" -class UserDict(object): +class UserDict: def __init__(self, dict=None, **kwargs): self.data = {} if dict is not None: @@ -80,10 +80,7 @@ def __iter__(self): return iter(self.data) -import _abcoll -_abcoll.MutableMapping.register(IterableUserDict) - class DictMixin: # Mixin defining all dictionary methods for classes that already have # a minimum dictionary interface including getitem, setitem, delitem, Second, when Python 2.7 is run on a 64 bit host, sys.platform.machine() is 'AMD64' even if Python is 32 bit (http://bugs.python.org/issue7860). Hence numscons always uses the win64 configuration on Python 2.7. This can be fixed by using "if '64 bit' in sys.version" or "platform.architecture()[0] == '64bit'" instead of "platform.machine() == 'AMD64'": diff --git a/numscons/checkers/config.py b/numscons/checkers/config.py index 4ca1079..198ccdb 100644 --- a/numscons/checkers/config.py +++ b/numscons/checkers/config.py @@ -18,7 +18,7 @@ def _get_win32_config_files(): import platform files = [pjoin(_CONFDIR, 'win32', 'perflib.cfg')] - if platform.machine() == 'AMD64': + if platform.architecture()[0] == '64bit': files.append(pjoin(_CONFDIR, 'win64', 'perflib.cfg')) return files diff --git a/numscons/core/compiler_config.py b/numscons/core/compiler_config.py index d6a79d9..606963e 100644 --- a/numscons/core/compiler_config.py +++ b/numscons/core/compiler_config.py @@ -29,7 +29,7 @@ def _get_win32_config_files(filename): import platform files = [pjoin(_CONFDIR, 'win32', filename)] - if platform.machine() == 'AMD64': + if platform.architecture()[0] == '64bit': files.append(pjoin(_CONFDIR, 'win64', filename)) return files diff --git a/numscons/core/misc.py b/numscons/core/misc.py index a546122..42836b9 100644 --- a/numscons/core/misc.py +++ b/numscons/core/misc.py @@ -59,7 +59,7 @@ def built_with_ifort(env): def is_python_win64(): # XXX: import it here because it takes some time import platform - return sys.platform == "win32" and platform.machine() == "AMD64" + return sys.platform == "win32" and platform.architecture()[0] == '64bit' def get_pythonlib_name(debug = 0): """Return the name of python library (necessary to link on NT with -- Christoph