我有一个巨大的gl.pxd
包含所有定义的文件gl.h
, glu.h
and glut.h
。例如它有这些行:
cdef extern from '<OpenGL/gl.h>':
ctypedef unsigned int GLenum
cdef void glBegin( GLenum mode )
我有一个window.pyx
文件,看起来像这样:
# Import OpenGL definitions
# headers of gl, glu and glut
from gl cimport *
cdef int argcp
cdef char **argv
cdef void render_scene():
glClear( GL_COLOR_BUFFER_BIT )
glBegin( GL_TRIANGLES )
glVertex2f( -.5, -.5)
glVertex2f( .5, 0 )
glVertex2f( 0, -5. )
glEnd()
glutSwapBuffers()
cpdef main():
# Initialize GLUT and create Window
glutInit( &argcp, argv )
glutInitDisplayMode( GLUT_RGBA | GLUT_DOUBLE )
glutInitWindowPosition( 100, 100 )
glutInitWindowSize( 1280, 720 )
glutCreateWindow( 'My Shiny New Window' )
# Register callbacks
glutDisplayFunc( render_scene )
# Enter GLUT event processing cycle
glutMainLoop()
我也有一个setup.py
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('window', ['window.pyx'])]
)
我用哪个打电话python3 setup.py build_ext --inplace
它编译,输出是这样的:
running build_ext
cythoning window.pyx to window.c
building 'window' extension
/usr/bin/clang -fno-strict-aliasing -fno-common -dynamic -DNDEBUG -g -O3 -arch i386 -arch x86_64 -I/Library/Frameworks/Python.framework/Versions/3.3/include/python3.3m -c window.c -o build/temp.macosx-10.6-intel-3.3/window.o
/usr/bin/clang -bundle -undefined dynamic_lookup -arch i386 -arch x86_64 -g build/temp.macosx-10.6-intel-3.3/window.o -o /Users/petervaro/cygl/window.so
我有一个window_test.py
看起来像这样:
import window
window.main()
但是如果我想运行这个 python 代码片段,我会得到这个错误:
Traceback (most recent call last):
File "/Users/petervaro/cygl/window_test.py", line 3, in <module>
import window
ImportError: dlopen(/Users/petervaro/cygl/window.so, 2): Symbol not found: _glBegin
Referenced from: /Users/petervaro/cygl/window.so
Expected in: flat namespace
in /Users/petervaro/cygl/window.so
我的问题与此非常相似:导入 Cython 生成的 .so 文件时,此 ImportError 的含义是什么? https://stackoverflow.com/q/7068721/2188562-- 虽然我没有外部库,但我想使用builtinOpenGL 库...
哦,我使用的是 Mac OS X 10.8.5、Cython 19.2 和 Python 3.3。
任何帮助将不胜感激!
提前致谢!