All right I finally managed to make it run on Linux: xvfb-run -s "-screen 0 1400x900x24" python hello_world.py
This runs without problems on Ubuntu 12.04 and 14.04, and Mint 17.2. Still no luck on OSX. I guess the problem is that pyglet as most apps in OSX uses Quartz instead of X11, so Xvfb does nothing. On Tuesday, September 29, 2015 at 3:51:15 PM UTC-4, Andrea Cuttone wrote: > > I now tried on a Ubuntu 13.10 machine > > I run xvfb-run ipython hello_world.py > <https://github.com/benatkin/pyglet-stuff/blob/master/hello_world.py>: > > Traceback (most recent call last): > File "hello_world.py", line 3, in <module> > window = pyglet.window.Window() > File > "/home/andrea/.local/lib/python2.7/site-packages/pyglet/__init__.py", line > 357, in __getattr__ > __import__(import_name) > File > "/home/andrea/.local/lib/python2.7/site-packages/pyglet/window/__init__.py", > line 1817, in <module> > gl._create_shadow_window() > File > "/home/andrea/.local/lib/python2.7/site-packages/pyglet/gl/__init__.py", > line 205, in _create_shadow_window > _shadow_window = Window(width=1, height=1, visible=False) > File > "/home/andrea/.local/lib/python2.7/site-packages/pyglet/window/xlib/__init__.py", > > line 163, in __init__ > super(XlibWindow, self).__init__(*args, **kwargs) > File > "/home/andrea/.local/lib/python2.7/site-packages/pyglet/window/__init__.py", > line 559, in __init__ > self._create() > File > "/home/andrea/.local/lib/python2.7/site-packages/pyglet/window/xlib/__init__.py", > > line 210, in _create > visual_info = self.config.get_visual_info() > File > "/home/andrea/.local/lib/python2.7/site-packages/pyglet/gl/xlib.py", line > 182, in get_visual_info > self.canvas.display._display, self._fbconfig).contents > ValueError: NULL pointer access > > > > > On Tuesday, September 29, 2015 at 11:11:14 AM UTC-4, swiftcoder wrote: >> >> What are the chances you can switch to a Linux server? >> >> It's likely to be a lot simpler to get X to give you a headless >> framebuffer (or MESA equivalent), then to rewrite pyglet's OS X >> implementation to allow headless operation. >> On Tue, Sep 29, 2015 at 07:20, Andrea Cuttone <andrea...@gmail.com> >> wrote: >> >>> the app is already written using pyglet. Wouldn't that require to >>> complete rewrite it using pycairo? >>> >>> >>> >>> Andrea Cuttone >>> >>> On Tue, Sep 29, 2015 at 10:13 AM, Andre D <an...@andred.ca> wrote: >>> >>>> Does something like pycairo fit your needs? >>>> On Sep 29, 2015 10:12 AM, "Andrea Cuttone" <andrea...@gmail.com> wrote: >>>> >>>>> The application is https://github.com/andrea-cuttone/geoplotlib, a >>>>> python library for plotting geographical data. >>>>> The use case is running the app to render the maps, capture the >>>>> framebuffer and store it to disk in form of raster images. >>>>> This works great when there is a physical screen attached, but it >>>>> fails with a headless session. >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> Andrea Cuttone >>>>> >>>>> On Tue, Sep 29, 2015 at 10:05 AM, Andre D <an...@andred.ca> wrote: >>>>> >>>>>> What does the application do with pyglet that a terminal is >>>>>> sufficient? >>>>>> On Sep 29, 2015 9:57 AM, "Andrea Cuttone" <andrea...@gmail.com> >>>>>> wrote: >>>>>> >>>>>>> remote desktop is not a good option in our setup, as it is very slow >>>>>>> over VPN, and also we would like to limit the access we give to users >>>>>>> to >>>>>>> just a terminal. >>>>>>> >>>>>>> >>>>>>> >>>>>>> Andrea Cuttone >>>>>>> >>>>>>> On Mon, Sep 28, 2015 at 4:37 PM, Tristam MacDonald < >>>>>>> swift...@gmail.com> wrote: >>>>>>> >>>>>>>> How about remote desktop'ing in, instead of headless SSH? >>>>>>>> On Mon, Sep 28, 2015 at 13:15, Andrea Cuttone <andrea...@gmail.com> >>>>>>>> wrote: >>>>>>>> >>>>>>>>> yes I guess this is the issue, since I am connected with ssh and >>>>>>>>> there is no window manager running. >>>>>>>>> >>>>>>>>> So the question is how to make pyglet use a virtual window manager >>>>>>>>> such as Xvfb <https://en.wikipedia.org/wiki/Xvfb> (which is based >>>>>>>>> on XQuartz) >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> On Monday, September 28, 2015 at 4:12:08 PM UTC-4, Rob wrote: >>>>>>>>>> >>>>>>>>>> I guess this answers it: >>>>>>>>>> >>>>>>>>>> Sep 28 21:58:49 1.1.1.1 python[14740] <Error>: This user is not >>>>>>>>>> allowed access to the window system right now. >>>>>>>>>> _RegisterApplication(), FAILED TO establish the default >>>>>>>>>> connection to the WindowServer, _CGSDefaultConnection() is NULL. >>>>>>>>>> >>>>>>>>>> Not sure if this is something we could fix in pyglet, or whether >>>>>>>>>> it is a system config thing. >>>>>>>>>> >>>>>>>>>> Rob >>>>>>>>>> >>>>>>>>>> Op maandag 28 september 2015 22:03:08 UTC+2 schreef Andrea >>>>>>>>>> Cuttone: >>>>>>>>>>> >>>>>>>>>>> Hi >>>>>>>>>>> >>>>>>>>>>> here is the output of `python -m pyglet.info` on the server >>>>>>>>>>> >>>>>>>>>>> https://gist.github.com/andrea-cuttone/61e3dd1f71c5f58b8996 >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Andrea Cuttone >>>>>>>>>>> >>>>>>>>>>> On Mon, Sep 28, 2015 at 3:50 PM, Rob <silves...@gmail.com> >>>>>>>>>>> wrote: >>>>>>>>>>> >>>>>>>>>>>> Hi, >>>>>>>>>>>> >>>>>>>>>>>> Can you check what `python -m pyglet.info` returns? >>>>>>>>>>>> >>>>>>>>>>>> Rob >>>>>>>>>>>> >>>>>>>>>>>> Op maandag 28 september 2015 21:16:34 UTC+2 schreef Andrea >>>>>>>>>>>> Cuttone: >>>>>>>>>>>> >>>>>>>>>>>>> Hello >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> I am trying to run a hello world pyglet app on OSX 10.10, >>>>>>>>>>>>> where I connect through ssh. >>>>>>>>>>>>> When doing that, I get the following error: >>>>>>>>>>>>> >>>>>>>>>>>>> /Users/ancu/pyglet-1.2.3/pyglet/canvas/base.pyc in >>>>>>>>>>>>> get_default_screen(self) >>>>>>>>>>>>> 72 :rtype: :class:`Screen` >>>>>>>>>>>>> 73 ''' >>>>>>>>>>>>> ---> 74 return self.get_screens()[0] >>>>>>>>>>>>> 75 >>>>>>>>>>>>> 76 def get_windows(self): >>>>>>>>>>>>> >>>>>>>>>>>>> IndexError: list index out of range >>>>>>>>>>>>> >>>>>>>>>>>>> which I assume is due to the fact that no Window Manager is >>>>>>>>>>>>> running. >>>>>>>>>>>>> >>>>>>>>>>>>> I saw that some people suggest to use the virtual X server >>>>>>>>>>>>> Xvfb. However even if I have Xvfb running, pyglet seem to not >>>>>>>>>>>>> detect it. >>>>>>>>>>>>> >>>>>>>>>>>>> Does anyone have experience on how to solve this? >>>>>>>>>>>>> >>>>>>>>>>>>> >>>>>>>>>>>>> Best, >>>>>>>>>>>>> >>>>>>>>>>>>> Andrea >>>>>>>>>>>>> >>>>>>>>>>>>> -- >>>>>>>>>>>> You received this message because you are subscribed to a topic >>>>>>>>>>>> in the Google Groups "pyglet-users" group. >>>>>>>>>>>> To unsubscribe from this topic, visit >>>>>>>>>>>> https://groups.google.com/d/topic/pyglet-users/p4Jz4g2QXKs/unsubscribe >>>>>>>>>>>> . >>>>>>>>>>>> To unsubscribe from this group and all its topics, send an >>>>>>>>>>>> email to pyglet-users...@googlegroups.com. >>>>>>>>>>>> To post to this group, send email to pyglet...@googlegroups.com >>>>>>>>>>>> . >>>>>>>>>>>> Visit this group at http://groups.google.com/group/pyglet-users >>>>>>>>>>>> . >>>>>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> -- >>>>>>>>> You received this message because you are subscribed to the Google >>>>>>>>> Groups "pyglet-users" group. >>>>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>>>> send an email to pyglet-users...@googlegroups.com. >>>>>>>>> To post to this group, send email to pyglet...@googlegroups.com. >>>>>>>>> Visit this group at http://groups.google.com/group/pyglet-users. >>>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>>> >>>>>>>> -- >>>>>>>> You received this message because you are subscribed to a topic in >>>>>>>> the Google Groups "pyglet-users" group. >>>>>>>> To unsubscribe from this topic, visit >>>>>>>> https://groups.google.com/d/topic/pyglet-users/p4Jz4g2QXKs/unsubscribe >>>>>>>> . >>>>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>>>> pyglet-users...@googlegroups.com. >>>>>>>> To post to this group, send email to pyglet...@googlegroups.com. >>>>>>>> Visit this group at http://groups.google.com/group/pyglet-users. >>>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>>> >>>>>>> >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "pyglet-users" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to pyglet-users...@googlegroups.com. >>>>>>> To post to this group, send email to pyglet...@googlegroups.com. >>>>>>> Visit this group at http://groups.google.com/group/pyglet-users. >>>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to a topic in >>>>>> the Google Groups "pyglet-users" group. >>>>>> To unsubscribe from this topic, visit >>>>>> https://groups.google.com/d/topic/pyglet-users/p4Jz4g2QXKs/unsubscribe >>>>>> . >>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>> pyglet-users...@googlegroups.com. >>>>>> To post to this group, send email to pyglet...@googlegroups.com. >>>>>> Visit this group at http://groups.google.com/group/pyglet-users. >>>>>> For more options, visit https://groups.google.com/d/optout. >>>>>> >>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "pyglet-users" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to pyglet-users...@googlegroups.com. >>>>> To post to this group, send email to pyglet...@googlegroups.com. >>>>> Visit this group at http://groups.google.com/group/pyglet-users. >>>>> For more options, visit https://groups.google.com/d/optout. >>>>> >>>> -- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "pyglet-users" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/pyglet-users/p4Jz4g2QXKs/unsubscribe. >>>> To unsubscribe from this group and all its topics, send an email to >>>> pyglet-users...@googlegroups.com. >>>> To post to this group, send email to pyglet...@googlegroups.com. >>>> Visit this group at http://groups.google.com/group/pyglet-users. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "pyglet-users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to pyglet-users...@googlegroups.com. >>> To post to this group, send email to pyglet...@googlegroups.com. >>> Visit this group at http://groups.google.com/group/pyglet-users. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- You received this message because you are subscribed to the Google Groups "pyglet-users" group. 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