Trying out Kivy

[bayang]

Le 14 nov. 2015 13:00, "Cecil Westerhof" <Cecil at decebal.nl> a écrit :
>
> On Friday 13 Nov 2015 21:10 CET, Cecil Westerhof wrote:
>
> > On Friday 13 Nov 2015 20:53 CET, Michael Torrie wrote:
> >
> >> On 11/13/2015 11:30 AM, Cecil Westerhof wrote:
> >>> On Friday 13 Nov 2015 18:21 CET, Michael Torrie wrote:
> >>>
> >>>> On 11/13/2015 09:33 AM, Cecil Westerhof wrote:
> >>>>> I tried to install pygame and PIL with pip3, but that did not
> >>>>> find anything.
> >>>>
> >>>> The replacement for PIL is called Pillow. I'm not sure if it's a
> >>>> drop-in replacement or not. If it's not, then you'd have to
> >>>> modify Kivy to import from Pillow. Pillow does support Python3.
> >>>
> >>> After installing Pillow the error about PIL disappeared, but I got
> >>> new errors about bcm and x11.
> >>
> >> Traceback?
> >
> > Purge log fired. Analysing... Purge finished! [INFO ] [Logger ]
> > Record log in /home/cecil/.kivy/logs/kivy_15-11-13_28.txt [INFO ]
> > [Kivy ] v1.9.0 [INFO ] [Python ] v3.4.1 (default, May 23 2014,
> > 17:48:28) [GCC] [INFO ] [Factory ] 173 symbols loaded [INFO ] [Image
> > ] Providers: img_tex, img_dds, img_gif, img_pil (img_pygame,
> > img_ffpyplayer ignored) [INFO ] [Text ] Provider:
> > pil(['text_pygame'] ignored) [CRITICAL ] [Window ] Unable to find
> > any valuable Window provider at all! egl_rpi - ImportError: cannot
> > import name 'bcm' File
> > "/usr/lib64/python3.4/site-packages/kivy/core/__init__.py", line 57,
> > in core_select_lib fromlist=[modulename], level=0) File
> > "/usr/lib64/python3.4/site-packages/kivy/core/window/window_egl_rpi.py",
> > line 12, in <module> from kivy.lib.vidcore_lite import bcm, egl
> >
> > pygame - ImportError: No module named 'pygame' File
> > "/usr/lib64/python3.4/site-packages/kivy/core/__init__.py", line 57,
> > in core_select_lib fromlist=[modulename], level=0) File
> > "/usr/lib64/python3.4/site-packages/kivy/core/window/window_pygame.py",
> > line 8, in <module> import pygame
> >
> > x11 - ImportError: No module named 'kivy.core.window.window_x11'
> > File "/usr/lib64/python3.4/site-packages/kivy/core/__init__.py",
> > line 57, in core_select_lib fromlist=[modulename], level=0)
> >
> > [CRITICAL ] [App ] Unable to get a Window, abort. Exception ignored
> > in: 'kivy.properties.dpi2px' Traceback (most recent call last): File
> > "/usr/lib64/python3.4/site-packages/kivy/utils.py", line 360, in
> > __get__ retval = self.func(inst) File
> > "/usr/lib64/python3.4/site-packages/kivy/metrics.py", line 169, in
> > dpi EventLoop.ensure_window() File
> > "/usr/lib64/python3.4/site-packages/kivy/base.py", line 126, in
> > ensure_window sys.exit(1) SystemExit: 1 [CRITICAL ] [App ] Unable to
> > get a Window, abort.
> >
> >
> > I see a difference with python2. (Did not notice it before.) With
> > python3 v1.9.0 is installed, but with python2 v1.8.0.
> > [INFO              ] Kivy v1.8.0
> >
> > Maybe that is the problem?
>
> I tried to install v1.8.0 with:
>     pip3 install -I kivy==1.8.0
>
> But that gives:
>     building 'kivy.graphics.shader' extension
>
>     gcc -pthread -Wno-unused-result -Werror=declaration-after-statement
-DNDEBUG -fmessage-length=0 -grecord-gcc-switches -O2 -Wall
-D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g -DOPENSSL_LOAD_CONF -fPIC
-I/usr/include/python3.4m -c
/tmp/pip_build_root/kivy/kivy/graphics/shader.c -o
build/temp.linux-x86_64-3.4/tmp/pip_build_root/kivy/kivy/graphics/shader.o
>
>     /tmp/pip_build_root/kivy/kivy/graphics/shader.c:1:2: error: #error Do
not use this file, it is the result of a failed Cython compilation.
>
>      #error Do not use this file, it is the result of a failed Cython
compilation.
>
>       ^
>
>
>
>      Error compiling Cython file:
>
>      ------------------------------------------------------------
>
>      ...
>
>                  vertex_format.last_shader = self
>
>                  for i in xrange(vertex_format.vattr_count):
>
>                      attr = &vertex_format.vattr[i]
>
>                      if attr.per_vertex == 0:
>
>                          continue
>
>                      attr.index = glGetAttribLocation(self.program, <char
*><bytes>attr.name)
>
>                                                                    ^
>
>      ------------------------------------------------------------
>
>
>
>      kivy/graphics/shader.pyx:448:63: Casting temporary Python object to
non-numeric non-Python type
>
>      error: command 'gcc' failed with exit status 1
>
>     ----------------------------------------
>     Cleaning up...
>     Command /usr/bin/python3 -c "import setuptools,
tokenize;__file__='/tmp/pip_build_root/kivy/setup.py';exec(compile(getattr(tokenize,
'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))"
install --record /tmp/pip-hvd8j0e_-record/install-rec
>
> --
> Cecil Westerhof
> Senior Software Engineer
> LinkedIn: http://www.linkedin.com/in/cecilwesterhof
> --
> https://mail.python.org/mailman/listinfo/python-list

The latest cython version is for kivy 1.9. For kivy 1.8 you must use an
older cython version.  Check kivy website. That's why you get compiling
errors