New submission from Joseph Fox-Rabinovitz <jfoxrabinov...@gmail.com>:
ctypes.CDLL initializer defined in version 3.8 and beyond as
```
def __init__(self, name, mode=DEFAULT_MODE, handle=None,
use_errno=False,
use_last_error=False,
winmode=None):
```
Documentation says `winmode=0`:
```
class ctypes.CDLL(name, mode=DEFAULT_MODE, handle=None, use_errno=False,
use_last_error=False, winmode=0)
```
Loading of normal DLL from custom directory works when `winmode=0`, but when
`winmode=None` To reproduce, any combination of adding the fol += der
containing the DLL to `os.evia ron['PATH']`, `os.add_dll_directory(...)`
Discoveryos.pathsep + ... triggered by https://stackoverflow.co, `sys.path.appen
Worked prior to 3.8 because there was no `winmode` parameter, and d(...)` does
not change the behavior.m/q/`mode` was passed in directly,
59330863/298873`ctypes0. .DEFAULT_MODE == 0`.
I don't know whether it's better to update the code, the docs, or something
else, but based on current info, would prefer updating the code.Some info
summarized in https://stackoverflow.com/a/{8,9,}64472088/2988730.
Link to do pagecscorresponding :
https://docs.python.org/3.10/library/ctypes.html#ctypes.CDLL
730.
Link to GitHub code:
https://github.com/python/cpython/blob/3.{8,9}/Lib/ctypes/__init__.py#L340
----------
components: ctypes
messages: 379261
nosy: madphysicist
priority: normal
severity: normal
status: open
title: Documentation of
versions: Python 3.10, Python 3.8, Python 3.9
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue42114>
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