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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"[EASY] subprocess: TypeError: can't concat str to bytes, in _execute_child()","articleBody":"BPO | [31178](https://bugs.python.org/issue31178)\n--- | :---\nNosy | @gpshead, @vstinner, @ammaraskar\nPRs | \u003cli\u003epython/cpython#3066\u003c/li\u003e\u003cli\u003epython/cpython#3388\u003c/li\u003e\u003cli\u003epython/cpython#3896\u003c/li\u003e\u003cli\u003epython/cpython#3897\u003c/li\u003e\nFiles | \u003cli\u003e[subprocess_bug.patch](https://bugs.python.org/file47077/subprocess_bug.patch \"Uploaded as text/plain at 2017-08-10.15:29:43 by @vstinner\")\u003c/li\u003e\n\n\u003csup\u003e*Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.*\u003c/sup\u003e\n\n\u003cdetails\u003e\u003csummary\u003eShow more details\u003c/summary\u003e\u003cp\u003e\n\nGitHub fields:\n```python\nassignee = 'https://github.com/gpshead'\nclosed_at = \u003cDate 2017-10-09.15:55:17.396\u003e\ncreated_at = \u003cDate 2017-08-10.15:29:43.999\u003e\nlabels = ['easy', 'library']\ntitle = \"[EASY] subprocess: TypeError: can't concat str to bytes, in _execute_child()\"\nupdated_at = \u003cDate 2017-10-09.15:55:17.396\u003e\nuser = 'https://github.com/vstinner'\n```\n\nbugs.python.org fields:\n```python\nactivity = \u003cDate 2017-10-09.15:55:17.396\u003e\nactor = 'vstinner'\nassignee = 'gregory.p.smith'\nclosed = True\nclosed_date = \u003cDate 2017-10-09.15:55:17.396\u003e\ncloser = 'vstinner'\ncomponents = ['Library (Lib)']\ncreation = \u003cDate 2017-08-10.15:29:43.999\u003e\ncreator = 'vstinner'\ndependencies = []\nfiles = ['47077']\nhgrepos = []\nissue_num = 31178\nkeywords = ['patch', 'easy']\nmessage_count = 9.0\nmessages = ['300102', '301447', '301448', '301450', '301515', '303762', '303763', '303764', '303980']\nnosy_count = 3.0\nnosy_names = ['gregory.p.smith', 'vstinner', 'ammar2']\npr_nums = ['3066', '3388', '3896', '3897']\npriority = 'normal'\nresolution = 'fixed'\nstage = 'resolved'\nstatus = 'closed'\nsuperseder = None\ntype = None\nurl = 'https://bugs.python.org/issue31178'\nversions = ['Python 3.6']\n```\n\n\u003c/p\u003e\u003c/details\u003e\n","author":{"url":"https://github.com/vstinner","@type":"Person","name":"vstinner"},"datePublished":"2017-08-10T15:29:44.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":9},"url":"https://github.com/75361/cpython/issues/75361"}