Cython AttributeError：“模块”对象没有属性“声明”

Question

编译 .pyx 文件工作正常，但当我输入以下内容时突然开始出现错误：

python setup.py build_ext --inplace

我收到错误：

c:\Python27\cython\helloworld>python setup.py build_ext --inplace
running build_ext
cythoning hello.pyx to hello.c
Traceback (most recent call last):
  File "setup.py", line 8, in <module>
    ext_modules = [Extension("hello", ["hello.pyx"])]
  File "C:\Python27\lib\distutils\core.py", line 152, in setup
    dist.run_commands()
  File "C:\Python27\lib\distutils\dist.py", line 953, in run_commands
    self.run_command(cmd)
  File "C:\Python27\lib\distutils\dist.py", line 972, in run_command
    cmd_obj.run()
  File "C:\Python27\lib\site-packages\Cython\Distutils\build_ext.py", line 163,
in run
    _build_ext.build_ext.run(self)
  File "C:\Python27\lib\distutils\command\build_ext.py", line 340, in run
    self.build_extensions()
  File "C:\Python27\lib\site-packages\Cython\Distutils\build_ext.py", line 170,
in build_extensions
    ext.sources = self.cython_sources(ext.sources, ext)
  File "C:\Python27\lib\site-packages\Cython\Distutils\build_ext.py", line 317,
in cython_sources
    full_module_name=module_name)
  File "C:\Python27\lib\site-packages\Cython\Compiler\Main.py", line 605, in com
pile
    return compile_single(source, options, full_module_name)
  File "C:\Python27\lib\site-packages\Cython\Compiler\Main.py", line 546, in com
pile_single
    return run_pipeline(source, options, full_module_name)
  File "C:\Python27\lib\site-packages\Cython\Compiler\Main.py", line 386, in run
_pipeline
    import Pipeline
  File "C:\Python27\lib\site-packages\Cython\Compiler\Pipeline.py", line 7, in <
module>
    from Visitor import CythonTransform
  File "Visitor.py", line 9, in init Cython.Compiler.Visitor (Cython\Compiler\Vi
sitor.c:12838)
  File "C:\Python27\lib\site-packages\Cython\Compiler\Nodes.py", line 6, in <mod
ule>
    cython.declare(sys=object, os=object, copy=object,
AttributeError: 'module' object has no attribute 'declare'

我尝试在一个简单的 .pyx 文件 helloworld 上运行它：

def say_hello_to(name):
    print "Hello %s!" %name

使用 setup.py：

from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext

setup(
  name = 'Hello world app',
  cmdclass = {'build_ext': build_ext},
  ext_modules = [Extension("hello", ["hello.pyx"])]
)

它已经工作了好几次，有些东西已经改变了，但当我用谷歌搜索并搜索这个问题时，我找不到任何信息。我正在使用 Python 2.7 64 位、最新版本的 Cython 并使用 Windows SDK C/C++ 编译器来编译文件，并通过运行以下命令来准备环境：

C:\Program Files\Microsoft SDKs\Windows\v7.0>set DISTUTILS_USE_SDK=1
C:\Program Files\Microsoft SDKs\Windows\v7.0>setenv /x64 /release

对可能发生的事情有什么想法吗？提前Tnx！

Answer 1

从 python 脚本运行时，我遇到了同样的错误：

os.system("python setup.py build_ext --inplace")

尽管

python setup.py build_ext --inplace

从命令提示符工作。

原因是我的测试包的名称是“cython”......愚蠢的我