René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Image.detect_faces raises KeyError when the image doesn't contain any faces","articleBody":"\r\n\r\nExpected behavior: An empty list is returned from detect_faces.\r\n\r\nUbuntu 16.04\r\nPython 3.5.2\r\ngoogle-cloud version: 0.21.0\r\n\r\n## Code example\r\n~~~python\r\nimport google.cloud.vision.client\r\nimport base64\r\n\r\ntest_image_base64 = '''iVBORw0KGgoAAAANSUhEUgAAAOEAAADhCAMAAAAJbSJIAAAAZlBMVEU7lNn1+Pr6+/v7/Ps0kdg2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\r\nQRAEQRAEQRAEQRAEQRAEQRAEwQ//AapBX5sm4PxNAAAAAElFTkSuQmCC'''\r\n\r\ntest_image_bytes = base64.b64decode(test_image_base64)\r\n\r\nclient = google.cloud.vision.Client()\r\n\r\nimage = client.image(\r\n    content=test_image_bytes,\r\n)\r\n\r\nfaces = image.detect_faces()\r\nprint(faces)\r\n\r\n~~~\r\n\r\n\r\n## Stack trace\r\nTraceback (most recent call last):\r\n  File \"test.py\", line 42, in \u003cmodule\u003e\r\n    faces = image.detect_faces()\r\n  File \"/home/tal/virtualenv/lib/python3.5/site-packages/google/cloud/vision/image.py\", line 138, in detect_faces\r\n    return self._detect_annotation(features)\r\n  File \"/home/tal/virtualenv/lib/python3.5/site-packages/google/cloud/vision/image.py\", line 125, in _detect_annotation\r\n    _entity_from_response_type(feature.feature_type, results))\r\n  File \"/home/tal/virtualenv/lib/python3.5/site-packages/google/cloud/vision/image.py\", line 226, in _entity_from_response_type\r\n    Face.from_api_repr(face) for face in results[feature_key])\r\nKeyError: 'faceAnnotations'\r\n","author":{"url":"https://github.com/talzion12","@type":"Person","name":"talzion12"},"datePublished":"2016-11-17T15:24:09.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/2749/google-cloud-python/issues/2749"}