René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Vision API Error isn't thrown","articleBody":"Was updating some samples and found when calling the Google Cloud Vision API with the python client library which has some handwritten helper methods making it a partial GAPIC library, that if the users passes a URL that the API can't reach, the API returns an error message, but the client library doesn't `throw` the error rather returns it as part of the response.\r\n\r\nCall request: `response = client.text_detection(image=image)`\r\nIf you examine the response object from the api you'll find this:\r\n```\r\nerror {\r\n  code: 3\r\n  message: \"The URL does not appear to be accessible by us. Please double check or download the content and pass it in.\"\r\n}\r\n```\r\nSeems like we should throw this error.\r\n\r\nRelated PR that I discovered this in: https://github.com/GoogleCloudPlatform/python-docs-samples/pull/2569","author":{"url":"https://github.com/nnegrey","@type":"Person","name":"nnegrey"},"datePublished":"2020-01-09T23:09:14.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/3/python-vision/issues/3"}