如何在 cythonize-script 中包含 numpy？

Question

最近我开始研究 Cython，并且 Anaconda 发行版有这个方便的脚本cythonize，它允许做

 >cythonize -i foo.pyx

就地编译文件。

我的问题是如何使用该脚本包含 numpy 以便我cimport numpy正常工作？

我试过

>cythonize -X include_path=C:\Anaconda3\lib\site-packages\numpy\core\include  -i foo.pyx
>cythonize -s include_path=C:\Anaconda3\lib\site-packages\numpy\core\include  -i foo.pyx

也有include_dir=...，include_dirs=...都带有 -X 和 -s

如果我使用 -XI 得到

Traceback (most recent call last):
  File "C:\Anaconda3\Scripts\cythonize-script.py", line 5, in <module>
    sys.exit(Cython.Build.Cythonize.main())
  File "C:\Anaconda3\lib\site-packages\Cython\Build\Cythonize.py", line 185, in main
    options, paths = parse_args(args)
  File "C:\Anaconda3\lib\site-packages\Cython\Build\Cythonize.py", line 172, in parse_args
    options, args = parser.parse_args(args)
  File "C:\Anaconda3\lib\optparse.py", line 1387, in parse_args
    stop = self._process_args(largs, rargs, values)
  File "C:\Anaconda3\lib\optparse.py", line 1431, in _process_args
    self._process_short_opts(rargs, values)
  File "C:\Anaconda3\lib\optparse.py", line 1536, in _process_short_opts
    option.process(opt, value, values, self)
  File "C:\Anaconda3\lib\optparse.py", line 785, in process
    self.action, self.dest, opt, value, values, parser)
  File "C:\Anaconda3\lib\optparse.py", line 805, in take_action
    self.callback(self, opt, value, parser, *args, **kwargs)
  File "C:\Anaconda3\lib\site-packages\Cython\Build\Cythonize.py", line 38, in parse_directives
    value, relaxed_bool=True, current_settings=old_directives)
  File "C:\Anaconda3\lib\site-packages\Cython\Compiler\Options.py", line 424, in parse_directive_list
    raise ValueError('Unknown option: "%s"' % name)
ValueError: Unknown option: "include_path"

用 -s 我得到

Traceback (most recent call last):
  File "C:\Anaconda3\Scripts\cythonize-script.py", line 5, in <module>
    sys.exit(Cython.Build.Cythonize.main())
  File "C:\Anaconda3\lib\site-packages\Cython\Build\Cythonize.py", line 196, in main
    cython_compile(path, options)
  File "C:\Anaconda3\lib\site-packages\Cython\Build\Cythonize.py", line 90, in cython_compile
    **options.options)
  File "C:\Anaconda3\lib\site-packages\Cython\Build\Dependencies.py", line 809, in cythonize
    ctx = c_options.create_context()
  File "C:\Anaconda3\lib\site-packages\Cython\Compiler\Main.py", line 581, in create_context
    self.cplus, self.language_level, options=self)
  File "C:\Anaconda3\lib\site-packages\Cython\Compiler\Main.py", line 90, in __init__
    self.include_directories = include_directories + [standard_include_path]
TypeError: unsupported operand type(s) for +: 'bool' and 'list'

---

是的，我可以制作一个 setup.py，但我觉得这很烦人，它把那个 build 文件夹留在那里，而 cythonize 不这样做。

Answer 1

看起来不可能通过命令行版本传递包含目录cythonize。

问题是查看 cython 源代码，它期望选项是布尔值：

https://github.com/cython/cython/blob/master/Cython/Build/Cythonize.py#L48

因此，当您包含路径时，它会转换为True：

cythonize -i -s include_path=path_to_numpy_include test.pyx

选项被解析为：

{'directives': {}, 'options': {'include_path': True}, 'python3_mode': None, 'annotate': None, 'excludes': [], 'build': True, 'build_inplace': True, 'parallel': 12, 'force': None, 'quiet': None, 'lenient': None, 'keep_going': None}

这会导致您报告的类型错误：

TypeError: unsupported operand type(s) for +: 'bool' and 'list'

我认为你最好的选择是使用适当的setup.py.