René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"plt.imshow() error on PIL-opened tiff images","articleBody":"```\r\nplt.imshow(PIL.Image.open(\"lib/matplotlib/tests/baseline_images/test_image/uint16.tif\"))\r\n```\r\nfails with\r\n```\r\n\u003celided\u003e\r\n  File \"/home/antony/src/extern/matplotlib/lib/matplotlib/image.py\", line 838, in make_image\r\n    unsampled=unsampled)\r\n  File \"/home/antony/src/extern/matplotlib/lib/matplotlib/image.py\", line 447, in _make_image\r\n    if A.mask.shape == A.shape:\r\nAttributeError: 'numpy.ndarray' object has no attribute 'mask'\r\n```\r\nsince https://github.com/matplotlib/matplotlib/pull/8966/commits/12c27f3892931f0f3113e3041bed38d195b1d40d (mpl 2.1 @tacaswell); previously it was possible to directly plot PIL-opened images (which do follow the standard buffer protocol).\r\n\r\nIt is not particularly problematic because one can just wrap explicitly the PIL-opened image using np.asarray, or use plt.imread instead (which does exactly that); still, I'm raising the issue here in case we want to fix it.  (Or documenting that we no longer support PIL images is fine too, again the workaround is not that bad.)","author":{"url":"https://github.com/anntzer","@type":"Person","name":"anntzer"},"datePublished":"2018-09-17T13:32:24.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/12140/matplotlib/issues/12140"}