我正在尝试使用 Cython 编译以下 .pyx
文件:
import collections
nil = object() # used to distinguish from None
class TrieNode(object):
__slots__ = ['char', 'output', 'fail', 'children']
def __init__(self, char):
self.char = char
self.output = nil
self.fail = nil
self.children = {}
def __repr__(self):
if self.output is not nil:
return "<TrieNode '%s' '%s'>" % (self.char, self.output)
else:
return "<TrieNode '%s'>" % self.char
Cython 抛出这个错误:
running build_ext
cythoning TrieNode.pyx to TrieNode.c
Error compiling Cython file:
------------------------------------------------------------
...
nil = object() # used to distinguish from None
class TrieNode(object):
__slots__ = ['char', 'output', 'fail', 'children']
def __init__(self, char):
^
------------------------------------------------------------
TrieNode.pyx:7:24: Empty declarator
building 'TrieNode' extension
C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\BIN\amd64\cl.exe /c /nologo /Ox /MD /W3 /GS- /DNDEBUG -IE:\Python26\include -IE:\Python26\PC /Tc
TrieNode.c /Fobuild\temp.win-amd64-2.6\Release\TrieNode.obj
TrieNode.c
TrieNode.c(1) : fatal error C1189: #error : Do not use this file, it is the result of a failed Cython compilation.
error: command 'cl.exe' failed with exit status 2
我的 setup.py 目前看起来像这样:
from distutils.core import setup
from distutils.extension import Extension
from Cython.Distutils import build_ext
setup(
cmdclass = {'build_ext': build_ext},
ext_modules = [Extension("TrieNode", ["TrieNode.pyx"])]
)
我看到一个示例,其中 Python 类被毫无问题地编译为 Cython 文件,但这个示例似乎不起作用。有人可以告诉我我缺少什么吗?
最佳答案
在您的__init__
方法中,您有一个名为char
的变量。如果你 Cythonize 一个 .py 模块,这很好。但是,在 Cython .pyx 文件中,即使是 Python def
函数也可以有 C type declarations in the parameters .
关于python - cythoning 类时出现空声明符错误?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/8089412/