New submission from Serhiy Storchaka <storchaka+cpyt...@gmail.com>: test_subprocess is failing on Windows.
C:\py\cpython3.7>./python -m test -uall -v -m test_nonexisting_with_pipes test_subprocess Running Debug|Win32 interpreter... == CPython 3.7.0b1+ (heads/3.7:1a0239e, Feb 4 2018, 16:19:37) [MSC v.1911 32 bit (Intel)] == Windows-10-10.0.16299-SP0 little-endian == cwd: C:\py\cpython3.7\build\test_python_11092 == CPU count: 2 == encodings: locale=cp1251, FS=utf-8 Run tests sequentially 0:00:00 [1/1] test_subprocess test_nonexisting_with_pipes (test.test_subprocess.ProcessTestCase) ... FAIL test_nonexisting_with_pipes (test.test_subprocess.ProcessTestCaseNoPoll) ... skipped 'Test needs selectors.PollSelector' ====================================================================== FAIL: test_nonexisting_with_pipes (test.test_subprocess.ProcessTestCase) ---------------------------------------------------------------------- Traceback (most recent call last): File "C:\py\cpython3.7\lib\test\test_subprocess.py", line 1194, in test_nonexisting_with_pipes self.assertEqual(stderr, "") AssertionError: 'Traceback (most recent call last):\n Fil[923 chars]le\n' != '' Diff is 965 characters long. Set self.maxDiff to None to see it. ---------------------------------------------------------------------- Ran 2 tests in 0.171s FAILED (failures=1, skipped=1) test test_subprocess failed test_subprocess failed 1 test failed: test_subprocess Total duration: 391 ms Tests result: FAILURE Here stderr is: Traceback (most recent call last): File "C:\py\cpython3.7\lib\subprocess.py", line 1101, in _execute_child args = os.fsdecode(args) # os.PathLike -> str File "C:\py\cpython3.7\\lib\os.py", line 821, in fsdecode filename = fspath(filename) # Does type-checking of `filename`. TypeError: expected str, bytes or os.PathLike object, not list During handling of the above exception, another exception occurred: Traceback (most recent call last): File "<string>", line 16, in <module> File "C:\py\cpython3.7\lib\subprocess.py", line 756, in __init__ restore_signals, start_new_session) File "C:\py\cpython3.7\lib\subprocess.py", line 1104, in _execute_child args[0] = os.fsdecode(args[0]) # os.PathLike -> str File "C:\py\cpython3.7\\lib\os.py", line 821, in fsdecode filename = fspath(filename) # Does type-checking of `filename`. TypeError: expected str, bytes or os.PathLike object, not tuple In _execute_child args is passed to os.fsdecode() unless it is a string. In this case args is a list. os.fsdecode() doesn't accept a list. The regression was introduced in issue31961. ---------- components: Library (Lib), Windows messages: 311603 nosy: Phaqui, gregory.p.smith, paul.moore, serhiy.storchaka, steve.dower, tim.golden, zach.ware priority: normal severity: normal stage: needs patch status: open title: Popen doesn't work on Windows when args is a list type: behavior versions: Python 3.7, Python 3.8 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue32764> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com