René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Undefined names: 'obj_type' and 'cbook'","articleBody":"@anntzer  I thought we had testing in place to catch these kind of errors before PR review.\r\n\r\nflake8 testing of https://github.com/matplotlib/matplotlib on Python 3.6.3\r\n\r\n$ __flake8 . --count --select=E901,E999,F821,F822,F823 --show-source --statistics__\r\n```\r\n./lib/matplotlib/__init__.py:917:31: F821 undefined name 'obj_type'\r\n                version, key, obj_type, alternative=alt_key)\r\n                              ^\r\n./lib/matplotlib/gridspec.py:279:13: F821 undefined name 'cbook'\r\n            cbook.warn_deprecated(\"2.2\", \"fig\", obj_type=\"keyword argument\",\r\n            ^\r\n./lib/matplotlib/gridspec.py:369:13: F821 undefined name 'cbook'\r\n            cbook.warn_deprecated(\"2.2\", \"fig\", obj_type=\"keyword argument\",\r\n            ^\r\n3     F821 undefined name 'obj_type'\r\n3\r\n```","author":{"url":"https://github.com/cclauss","@type":"Person","name":"cclauss"},"datePublished":"2018-07-02T08:16:18.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":1},"url":"https://github.com/11550/matplotlib/issues/11550"}