Question

我想对以下代码进行Cythonize，但收到错误消息。

import numpy as np
cimport numpy as np
import pyvista as pv
from mesh_funcs import *
cimport cython 
from libcpp cimport bool
#import matplotlib.pyplot as plt


#Getting mesh points from pyvista unfortunately with a for loop
cdef class pv_cell:
    def pv_grid_cell_data(mesh2,bool points_toggle=True,
                          bool centres_toggle=True,bool volumes_toggle=True, bool areas_toggle=True):

        if areas_toggle==True:
            points_toggle==True

        if centres_toggle==True:
            points_toggle==True

        cdef np.ndarray gcp=np.zeros([mesh2.n_cells,8,3])
        cdef np.ndarray gcc=np.zeros([mesh2.n_cells,3])
        cdef np.ndarray gcv=np.zeros([mesh2.n_cells,3])
        cdef np.ndarray grid_facets=np.array([[0,1,2,3], [0,1,5,4], [1,2,6,5], [7,6,2,3], [7,3,0,4], [4,5,6,7]])
        cdef np.ndarray gca=np.zeros([mesh2.n_cells,6])

        for n1 in range(0,mesh2.n_cells):
            if points_toggle==True:
                gcp[n1]=mesh2.extract_cells(n1).points

            if centres_toggle==True:
                gcc[n1]=[np.mean(gcp[n1][:,0]),np.mean(gcp[n1][:,1]),np.mean(gcp[n1][:,2])]

            if volumes_toggle==True:
                gcv[n1]=mesh2.extract_cells(n1).compute_cell_sizes()["Volume"]

            if areas_toggle==True:

                for n2 in range(0,6):
                    ph8=gcp[n1][grid_facets[n2]]
                    gca[n1,n2]=tri_area(ph8[[0,2,3]])+tri_area(ph8[[0,1,3]])
        return gcp,gcc,gcv,gca

我的setup.py如下

from setuptools import setup
from Cython.Build import cythonize
import numpy

setup(
    ext_modules=cythonize("pv_cell_funcs.pyx"),include_dirs=[numpy.get_include()])

我使用以下命令启动setup.py。

python setup.py build_ext --inplace
pause

错误很长。它指出bool是未声明的标识符。然后，它列出了许多语法错误。最后一行是

error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2017\\BuildTools\\VC\\Tools\\MSVC\\...x64\\cl.exe' failed with exit status 2

Answer 1

因为您正在跑步：

from libcpp cimport bool

您应将c中的语言从默认的c++更改为setup.py：

from setuptools import setup
from Cython.Build import cythonize
import numpy

setup(
    ext_modules=cythonize("pv_cell_funcs.pyx", language='c++'),
    include_dirs=[numpy.get_include()])

有关在cython中使用bool的信息，请参见{{3}}。

Cythonize错误：失败，退出状态为2。numpy和pyvista

1 个答案: