无法安装Kivy:Cython / GCC错误

时间:2012-11-21 02:13:53

标签: python c gcc cython kivy

所以我尝试按照官方网站的说明安装Kivy:

$ sudo apt-get install python-setuptools python-pygame python-opengl \
  python-gst0.10 python-enchant gstreamer0.10-plugins-good python-dev \
  build-essential libgl1-mesa-dev libgles2-mesa-dev python-pip

$ sudo pip install --upgrade cython

$ sudo easy_install kivy

这就是我得到的:

Searching for kivy
Reading http://pypi.python.org/simple/kivy/
Best match: Kivy 1.4.1
Downloading http://pypi.python.org/packages/source/K/Kivy/Kivy-1.4.1.tar.gz#md5=94bba894269e4bdecc7881f256367e01
Processing Kivy-1.4.1.tar.gz
Running Kivy-1.4.1/setup.py -q bdist_egg --dist-dir /tmp/easy_install-MMi2Fv/Kivy-1.4.1/egg-dist-tmp-EcKbfC
[INFO   ] Kivy v1.4.1
Found GLES 2.0 headers at /usr/include/GLES2/gl2.h
Build configuration is:
 * use_opengl_es2  =  True
 * use_glew  =  False
 * use_opengl_debug  =  False
 * use_mesagl  =  False
Generate config.h
Generate config.pxi
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c: In function ‘__pyx_f_4kivy_8graphics_14transformation_6Matrix_identity’:
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c:2774:13: error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c: In function ‘__pyx_f_4kivy_8graphics_14transformation_6Matrix_inverse’:
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c:2978:13: error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c:2980:13: error: incompatible types when assigning to type    ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c: In function ‘__pyx_f_4kivy_8graphics_14transformation_6Matrix_multiply’:
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c:3364:13: error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c:3366:13: error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c:3368:13: error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c: In function ‘__pyx_pf_4kivy_8graphics_14transformation_6Matrix_20__str__’:
/tmp/easy_install-MMi2Fv/Kivy-1.4.1/kivy/graphics/transformation.c:3674:13: error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’
 error: Setup script exited with error: command 'gcc' failed with exit status 1

在网络上找不到答案后,我开始研究产生错误的文件:transformation.c,transformation.pyx和transformation.pyd。我还读了一些关于Cython的内容。

首先,所有错误都属于同一类:

error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’

这里引发了第一个错误:

__pyx_t_3 = __pyx_v_self->mat;

__ pyx_t_3 的类型为:

__pyx_t_4kivy_8graphics_14transformation_matrix_t

它有这个奇怪的名称,因为它是从 transformation.pxd 文件自动生成的:

ctypedef double matrix_t[16]

所以,输入( __ pyx_t_3 )== type(matrix_t)== double *。

__ pyx_v_self 的类型是:

struct __pyx_obj_4kivy_8graphics_14transformation_Matrix *

同样,它是从 transformation.pxd

生成的
ctypedef double matrix_t[16]

cdef class Matrix:
    cdef matrix_t mat
    ...

因此,键入( __ pyx_v_self-> mat )== type(Matrix.mat)== type(matrix_t)== double *

正如我们所看到的,任务的双方都是:

__pyx_t_3 = __pyx_v_self->mat;

属于(double *)类型。

为什么会出现这个错误:

error: incompatible types when assigning to type ‘__pyx_t_4kivy_8graphics_14transformation_matrix_t’ from type ‘double *’

然后被抚养?

看起来编译器没有将 matrix_t 的类型识别为double *。

2 个答案:

答案 0 :(得分:16)

刚遇到同样的错误。使用Cython 0.17.1可以帮助我:

sudo pip install Cython==0.17.1

如果您不想只修复问题,可以深入了解并检查这两个版本之间的变化。 https://github.com/cython/cython/blob/master/CHANGES.rst#0172-2012-11-20 - 在这里你可以找到相关的问题,但不幸的是我不是C / Cython的大师,快速浏览一下master和0.17.1之间的差异并没有说明我的问题在哪里,但如果你愿意的话你可以自己调查这个问题。

答案 1 :(得分:0)

我也遇到了同样的错误。我将其追溯到一个小例子,并发送电子邮件到Cython邮件列表:https://groups.google.com/forum/?fromgroups=#!topic/cython-users/fSZgHqrlCOc