我刚下载了Enthought的Canopy学术版并安装了Cython和MinGW（以及许多其他软件包），并希望通过我之前编写过的单元魔术%% cython在ipython笔记本中使用一些cython代码。我也在使用Windows 7 64位。
除非我明白这一点：
DistutilsPlatformError: Could not find Visual Studio 2008 in your path.
If you do not have Visual Studio 2008 installed, you can use
the MinGW compiler instead. To install mingw, do:
enpkg mingw
To use the MinGW compiler to build an extension module, use
the '-c' flag, e.g.:
python setup.py build_ext -c mingw64
Note that building Python extensions with MinGW is not officially
supported, although it is known to work in many cases.
在Cython文档中提到过，如果未将mingw添加到PATH，则会发生这种情况。我觉得这对Anaconda来说要容易得多，但到目前为止我已经完成了这件事：
我已经尝试将这些添加到我的路径中：
C:\Users\Patrick\User\EGG-INFO\mingw\usr\x86_64-w64-mingw32\bin
C:\Users\Patrick\User\EGG-INFO\mingw\usr\bin
C:\Users\Patrick\User\Lib\site-packages\mingw-4.8.1-2.egg-info\scripts
我需要做些什么才能让Cython使用mingw和EPD？
答案 0 :(得分：2)
我正在使用enthought冠层的学术版本，我和你有同样的问题。
我通过将系统环境变量中的VS90COMNTOOLS设置为C:/program files (x86)/Microsoft Visual Studio 12.0/Common7/Tools（我在Windows 8.1 x64中使用VS2013 Pro）解决了这个问题。
我还添加了vcvarsall.bat的路径，在我的情况下是：C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC到系统环境变量
在命令提示符下运行vcvarsall.bat，然后在python setup.py build_ext --inplace运行
编辑：
我已经用它测试了它并且工作了：
In [1] : %load_ext cythonmagic
In [2] : %%cython
def fib(int n):
cdef int i, a, b
a, b = 1, 1
for i in range(n):
a, b = a+b, a
return a
In [3] : fib(10)
Out[3] : 144
答案 1 :(得分：1)
好吧，到目前为止，我的解决方案是完全卸载EPD和Anaconda，然后重新安装Anaconda，一切都恢复正常。起初我认为原因是Anaconda和EPD不能很好地在一起玩。但我也尝试再次卸载Anaconda然后安装EPD仍然得到相同的错误。我确认安装了mingw，这次安装EPD时会自动附加到我的路径上。
如果您想尝试重新创建此错误，请尝试在Windows 7 64位上安装EPD canopy-1.4.0-win-64并尝试使用%%cython单元魔法在ipython笔记本中创建一个简单的cython函数，例如：
%load_ext cythonmagic
In [18]:
%%cython
cimport cython
cpdef f(int x):
cdef int y = x+2*100
return y
---------------------------------------------------------------------------
DistutilsPlatformError Traceback (most recent call last)
<ipython-input-18-326d9aaeb05c> in <module>()
----> 1 get_ipython().run_cell_magic(u'cython', u'', u'cimport cython\ncpdef f(int x):\n cdef int y = x+2*100\n return y')
C:\Users\Patrick\User\lib\site-packages\IPython\core\interactiveshell.pyc in run_cell_magic(self, magic_name, line, cell)
2160 magic_arg_s = self.var_expand(line, stack_depth)
2161 with self.builtin_trap:
-> 2162 result = fn(magic_arg_s, cell)
2163 return result
2164
C:\Users\Patrick\User\lib\site-packages\IPython\extensions\cythonmagic.pyc in cython(self, line, cell)
C:\Users\Patrick\User\lib\site-packages\IPython\core\magic.pyc in <lambda>(f, *a, **k)
191 # but it's overkill for just that one bit of state.
192 def magic_deco(arg):
--> 193 call = lambda f, *a, **k: f(*a, **k)
194
195 if callable(arg):
C:\Users\Patrick\User\lib\site-packages\IPython\extensions\cythonmagic.pyc in cython(self, line, cell)
266 build_extension.build_temp = os.path.dirname(pyx_file)
267 build_extension.build_lib = lib_dir
--> 268 build_extension.run()
269 self._code_cache[key] = module_name
270
C:\Users\Patrick\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.4.0.1938.win-x86_64\lib\distutils\command\build_ext.py in run(self)
335
336 # Now actually compile and link everything.
--> 337 self.build_extensions()
338
339 def check_extensions_list(self, extensions):
C:\Users\Patrick\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.4.0.1938.win-x86_64\lib\distutils\command\build_ext.py in build_extensions(self)
444
445 for ext in self.extensions:
--> 446 self.build_extension(ext)
447
448 def build_extension(self, ext):
C:\Users\Patrick\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.4.0.1938.win-x86_64\lib\distutils\command\build_ext.py in build_extension(self, ext)
494 debug=self.debug,
495 extra_postargs=extra_args,
--> 496 depends=ext.depends)
497
498 # XXX -- this is a Vile HACK!
C:\Users\Patrick\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.4.0.1938.win-x86_64\lib\distutils\msvc9compiler.py in compile(self, sources, output_dir, macros, include_dirs, debug, extra_preargs, extra_postargs, depends)
512
513 if not self.initialized:
--> 514 self.initialize()
515 compile_info = self._setup_compile(output_dir, macros, include_dirs,
516 sources, depends, extra_postargs)
C:\Users\Patrick\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.4.0.1938.win-x86_64\lib\distutils\msvc9compiler.py in initialize(self, plat_name)
422 PLAT_TO_VCVARS[plat_name]
423
--> 424 vc_env = query_vcvarsall(VERSION, plat_spec)
425
426 # take care to only use strings in the environment.
C:\Users\Patrick\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.4.0.1938.win-x86_64\lib\distutils\msvc9compiler.py in query_vcvarsall(version, arch)
304 if vs_info is None:
305 raise DistutilsPlatformError(
--> 306 '\n'.join((VS_NOT_FOUND_MESSAGE, MINGW_DEFLECT_MESSAGE)))
307
308 vcvarsall, is_express = vs_info
DistutilsPlatformError: Could not find Visual Studio 2008 in your path.
If you do not have Visual Studio 2008 installed, you can use
the MinGW compiler instead. To install mingw, do:
enpkg mingw
To use the MinGW compiler to build an extension module, use
the '-c' flag, e.g.:
python setup.py build_ext -c mingw64
Note that building Python extensions with MinGW is not officially
supported, although it is known to work in many cases.
我还将distutils.cfg添加到C:\Users\Patrick\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.4.0.1938.win-x86_64\Lib\distutils，内容如下：
[build]
compiler = mingw32
[build_ext]
compiler = mingw32
但仍然是同一个问题。有没有人能够在ipython中使用%%cython来获得没有完整版VS 2008的平台？
答案 2 :(得分：0)
MinGW，64位和Cython的组合根据https://github.com/cython/cython/wiki/64BitCythonExtensionsOnWindows不起作用并且给出了我自己的经验。 （这也很有用http://www.mathworks.com/matlabcentral/answers/98351-how-can-i-set-up-microsoft-visual-studio-2008-express-edition-for-use-with-matlab-7-7-r2008b-on-64）
你问是否需要完整版的VS2008。我的理解是，Visual Studio Express版和64位SDK（链接中的引用）的组合应该足够了。 VS2008可从https://www.dreamspark.com/Product/Product.aspx?productid=34和SDK http://www.microsoft.com/en-us/download/details.aspx?id=24826获取。请记住在安装SDK时选择64位编译器。