Hi all, I was able to figure out this issue. I think there was a conflict between libraries installed by my Python distribution (Anaconda scientific stack) and the libraries used to build pygame as per the instructions listed on the web. The problem was resolved by using a pygame build supplied on the conda repositories. See this answer for further detail: http://stackoverflow.com/a/33987457/3486684
On Sun, Nov 29, 2015 at 10:49 PM, Lenard Lindstrom <le...@telus.net> wrote: > Hi, > > On 15-11-29 12:25 PM, rockac...@gmail.com wrote: > >> A possible solution is to compile pygame yourself on that machine. >> See the website for details, but its not very involved on ubuntu. >> >> >> I do most of my Pygame development on Ubuntu 14.04 (Linux Mint 17.1). Of > course I build it myself, and have it passing all the tests. You will need > the following development packages installed: libpython2.7-dev (or > libpython3.4-dev), libsdl1.2-dev, libsdl-ttf2.0-dev, libsdl-image1.2-dev, > libsdl-mixer1.2-dev, libfreetype6-dev, libpng12-dev, libjpeg8-dev, > libportmidi-dev, and libX11-dev (for the scrap module). > > Building and installing is as simple as downloading the source, then in > the source directory doing > > python config.py > python setup.py install --prefix=where-you-want-it-to-go > > If you want the docs, you will also need to install the python-sphinx > package and run > > python makeref.py > > before the "python setup.py ..." > > > >> On Nov 29, 2015, at 11:38, Brian Merchant <bhmerch...@gmail.com <mailto: >> bhmerch...@gmail.com>> wrote: >> >> Hi all, >>> >>> I am now on Ubuntu. I did not have this issue when running the same >>> script on Windows. >>> >>> Here's the error I am getting: >>> >>> File "/home/alien/cncell/core/animator.py", line 413, in >>> create_animation_from_data >>> pygame.image.save(screen, image_fp) >>> pygame.error: SavePNG: could not create png write struct >>> >>> >>> When `pygame.image.save` is first called, `libpng` produces the >>> following warning: >>> >>> > libpng warning: Application built with libpng-1.2.51 but running with >>> 1.6.17 >>> >>> >>> Some things I have tried: >>> >>> 1) can I load PNGs? yes >>> >>> 2) results of `python -m pygame.tests`: >>> >>> ====================================================================== >>> FAIL: BaseModuleTest.test_get_error >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/base_test.py", >>> line 569, in test_get_error >>> e) >>> AssertionError: Failed to access the SoundFont >>> /usr/share/sounds/sf2/FluidR3_GM.sf2 >>> >>> > This is the installed SDL_mixer library complaining about missing > FluidSynth sound patch files. It can be ignored. > > > ====================================================================== >>> FAIL: BaseModuleTest.test_set_error >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/base_test.py", >>> line 586, in test_set_error >>> e) >>> AssertionError: Failed to access the SoundFont >>> /usr/share/sounds/sf2/FluidR3_GM.sf2 >>> ====================================================================== >>> ERROR: GL_ImageSave.test_image_save_works_with_opengl_surfaces >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image__save_gl_surface_test.py", >>> line 37, in test_image_save_works_with_opengl_surfaces >>> pygame.image.save(screen, tmp_file) >>> error: SavePNG: could not create png write struct >>> ====================================================================== >>> ERROR: ImageModuleTest.testSavePNG24 >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image_test.py", >>> line 215, in testSavePNG24 >>> pygame.image.save(surf, f_path) >>> error: SavePNG: could not create png write struct >>> ====================================================================== >>> ERROR: ImageModuleTest.testSavePNG32 >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image_test.py", >>> line 184, in testSavePNG32 >>> pygame.image.save(surf, f_path) >>> error: SavePNG: could not create png write struct >>> ====================================================================== >>> ERROR: ImageModuleTest.test_save >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image_test.py", >>> line 248, in test_save >>> pygame.image.save(s, temp_filename) >>> error: SavePNG: could not create png write struct >>> ====================================================================== >>> ERROR: ImageModuleTest.test_save_colorkey >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/image_test.py", >>> line 275, in test_save_colorkey >>> pygame.image.save(s, temp_filename) >>> error: SavePNG: could not create png write struct >>> ====================================================================== >>> ERROR: ImageextModuleTest.test_save_unicode_path >>> ---------------------------------------------------------------------- >>> Traceback (most recent call last): >>> File >>> "/home/brian/anaconda2/lib/python2.7/site-packages/pygame/tests/imageext_test.py", >>> line 65, in test_save_unicode_path >>> imageext.save_extended(im, temp_file) >>> error: SavePNG: could not create png write struct >>> ---------------------------------------------------------------------- >>> Ran 708 tests in 28.894s >>> FAILED (failures=2, errors=6) >>> >>> The results of these tests makes me think that the issue is unlikely to >>> be due to issues specific to the porting of my code from Windows to Ubuntu >>> (so for instance, I have tried to fix pathnames, etc. wherever possible, >>> and the `pygame` tests should be platform independent, but still fail?). >>> >>> What should I do to fix this issue? >>> >>> Kind regards, >>> Brian >>> >>> >>> > Hope this is of some help, > > Lenard Lindstrom > >
