René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"AttributeError calling subprocess.check_output(input=None) with encoding or errors args","articleBody":"# Bug report\r\n\r\nsubprocess.check_output(input=None) raises an AttributeError when called with encoding or errors args.\r\n\r\nExample:\r\n```\r\n\u003e\u003e\u003e check_output(['ls'], input=None, encoding='utf-8')\r\nTraceback (most recent call last):\r\n  File \"\u003cstdin\u003e\", line 1, in \u003cmodule\u003e\r\n  File \"/Users/ak/opensource/cpython4/Lib/subprocess.py\", line 466, in check_output\r\n    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,\r\n           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/Users/ak/opensource/cpython4/Lib/subprocess.py\", line 549, in run\r\n    stdout, stderr = process.communicate(input, timeout=timeout)\r\n                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/Users/ak/opensource/cpython4/Lib/subprocess.py\", line 1206, in communicate\r\n    stdout, stderr = self._communicate(input, endtime, timeout)\r\n                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\r\n  File \"/Users/ak/opensource/cpython4/Lib/subprocess.py\", line 2035, in _communicate\r\n    self._save_input(input)\r\n  File \"/Users/ak/opensource/cpython4/Lib/subprocess.py\", line 2115, in _save_input\r\n    self._input = self._input.encode(self.stdin.encoding,\r\n                  ^^^^^^^^^^^^^^^^^^\r\nAttributeError: 'bytes' object has no attribute 'encode'. Did you mean: 'decode'?\r\n```\r\n\r\n# Your environment\r\n\r\n- CPython versions tested on: 3.12 (the issue is also present in 3.10 and 3.11)\r\n- Operating system and architecture: MacOS M1, 11.5\r\n\r\nI will create a PR a bit later today. \r\n\r\n\r\n","author":{"url":"https://github.com/akulakov","@type":"Person","name":"akulakov"},"datePublished":"2022-10-04T07:39:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/97825/cpython/issues/97825"}