test_libraries.py 文件源码

def test_pil_plugins(pyi_builder):
    pyi_builder.test_source(
        """
        # Verify packaging of PIL.Image. Specifically, the hidden import of FixTk
        # importing tkinter is causing some problems.
        from PIL.Image import fromstring
        print(fromstring)

        # PIL import hook should bundle all available PIL plugins. Verify that plugins
        # are bundled.
        from PIL import Image
        Image.init()
        MIN_PLUG_COUNT = 7  # Without all plugins the count is usually 6.
        plugins = list(Image.SAVE.keys())
        plugins.sort()
        if len(plugins) < MIN_PLUG_COUNT:
            raise SystemExit('No PIL image plugins were bundled!')
        else:
            print('PIL supported image formats: %s' % plugins)
        """)