I think this message came to the wrong place.
Mainframetech (Chris) From: owner-pygame-us...@seul.org [mailto:owner-pygame-us...@seul.org] On Behalf Of Brian Merchant Sent: Sunday, November 29, 2015 2:39 PM To: pygame-users@seul.org Subject: [pygame] `pygame`: on Ubuntu, using `pygame.image.save` to save PNG causes `pygame.error: SavePNG: could not create png write struct` 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 ====================================================================== 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
