New submission from Jeremy Kloth <jeremy.kloth+python-trac...@gmail.com>:
When running Python via subprocess with captured output an encoding error
occurs attempting to output a Unicode filename. The same does not happen when
just using spawnl().
Python 3.6.5 (v3.6.5:f59c0932b4, Mar 28 2018, 17:00:18) [MSC v.1900 64 bit
(AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import os, sys, subprocess
>>> sys.stdout.encoding, sys.stdout.errors
('utf-8', 'surrogateescape')
>>> args = ['-u', '-c', "print('taqdir\\\u0634\u0645\u0627\u0631.py')"]
>>> os.spawnl(os.P_WAIT, sys.executable, '"%s"' % sys.executable, *args)
taqdir\شمار.py
0
>>> subprocess.run([sys.executable, *args], stdout=subprocess.PIPE,
>>> stderr=subprocess.STDOUT)
CompletedProcess(args=['C:\\Program Files (x86)\\Microsoft Visual
Studio\\Shared\\Python36_64\\python.exe', '-u', '-c',
"print('taqdir\\شمار.py')"], returncode=1, stdout=b'Traceback (most recent call
last):\r\n File "<string>", line 1, in <module>\r\n File "C:\\Program Files
(x86)\\Microsoft Visual
Studio\\Shared\\Python36_64\\lib\\encodings\\cp1252.py", line 19, in encode\r\n
return
codecs.charmap_encode(input,self.errors,encoding_table)[0]\r\nUnicodeEncodeError:
\'charmap\' codec can\'t encode characters in position 7-10: character maps to
<undefined>\r\n')
----------
components: Interpreter Core, Library (Lib), Unicode, Windows
messages: 324904
nosy: ezio.melotti, jkloth, paul.moore, steve.dower, tim.golden, vstinner,
zach.ware
priority: normal
severity: normal
status: open
title: Encoding error running in subprocess with captured output
versions: Python 3.6, Python 3.7, Python 3.8
_______________________________________
Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue34618>
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