New submission from Kyle Stanley <aeros...@gmail.com>:
In several recent PRs, test_ctypes.test_load_dll_with_flags is failing for the
Azure Pipelines "Windows PR tests win32" and "Windows PR tests win64" with the
following error message:
```
======================================================================
ERROR: test_load_dll_with_flags (ctypes.test.test_loading.LoaderTest)
[WinDLL('_sqlite3.dll', winmode=0)]
----------------------------------------------------------------------
Traceback (most recent call last):
File "d:\a\1\s\lib\ctypes\test\test_loading.py", line 140, in should_pass
subprocess.check_output(
File "d:\a\1\s\lib\subprocess.py", line 419, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "d:\a\1\s\lib\subprocess.py", line 533, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command
'['d:\\a\\1\\s\\PCbuild\\win32\\python.exe', '-c', "from ctypes import *;
import nt;WinDLL('_sqlite3.dll', winmode=0)"]' returned non-zero exit status 1.
======================================================================
ERROR: test_load_dll_with_flags (ctypes.test.test_loading.LoaderTest)
[WinDLL('_sqlite3.dll', winmode=0)]
----------------------------------------------------------------------
Traceback (most recent call last):
File "d:\a\1\s\lib\ctypes\test\test_loading.py", line 140, in should_pass
subprocess.check_output(
File "d:\a\1\s\lib\subprocess.py", line 419, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File "d:\a\1\s\lib\subprocess.py", line 533, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command
'['d:\\a\\1\\s\\PCbuild\\win32\\python.exe', '-c', "from ctypes import *;
import nt;WinDLL('_sqlite3.dll', winmode=0)"]' returned non-zero exit status 1.
```
Since this only started occurring recently in several unrelated PRs, I suspect
it was most likely an intermittent regression introduced in master. Here are
the PRs I have seen the same exact error occur in so far:
https://github.com/python/cpython/pull/18239
https://github.com/python/cpython/pull/19403
https://github.com/python/cpython/pull/19402
https://github.com/python/cpython/pull/19399
I was unable to reproduce it locally on my secondary boot of Windows 10.
----------
components: Library (Lib)
keywords: 3.9regression
messages: 365887
nosy: aeros
priority: normal
severity: normal
status: open
title: test_ctypes.test_load_dll_with_flags Windows failure
versions: Python 3.9
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue40214>
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