Hm, looking over the diff from a different perspective I think I have changed a few `__class_getitem__` methods that I shouldn't have. I'll see if that fixes it later tonight.

On Mon, Apr 6, 2020 at 7:23 PM Ethan Smith <> wrote:
(Trusty assistant reporting in) I should also note that further up the output there is a FileNotFoundError for sqlite3.dll, perhaps it isn't built or is in the wrong place?


On Mon, Apr 6, 2020, 7:19 PM Guido van Rossum <> wrote:
I have a large PR (, for PEP 585) that's failing in the Azures pipeline on Win32 and Win64 only. My trusty assistant who has a Windows laptop couldn't reproduce the failure. Can I buy a hint from someone? Steve?

The relevant failure output is:

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\", line 140, in should_pass
  File "d:\a\1\s\lib\", line 420, in check_output
    return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
  File "d:\a\1\s\lib\", line 524, 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.


--Guido van Rossum (
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--Guido van Rossum (
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