[Python-checkins] bpo-39393: Misleading error message on dependent DLL resolution failure (GH-18093)
Steve Dower
webhook-mailer at python.org
Tue Jan 28 04:42:47 EST 2020
https://github.com/python/cpython/commit/13c1c3556f2c12d0be2af890fabfbf44280b845c
commit: 13c1c3556f2c12d0be2af890fabfbf44280b845c
branch: master
author: Zackery Spytz <zspytz at gmail.com>
committer: Steve Dower <steve.dower at python.org>
date: 2020-01-28T20:42:43+11:00
summary:
bpo-39393: Misleading error message on dependent DLL resolution failure (GH-18093)
files:
A Misc/NEWS.d/next/Windows/2020-01-20-23-42-53.bpo-39393.gWlJDG.rst
M Modules/_ctypes/callproc.c
diff --git a/Misc/NEWS.d/next/Windows/2020-01-20-23-42-53.bpo-39393.gWlJDG.rst b/Misc/NEWS.d/next/Windows/2020-01-20-23-42-53.bpo-39393.gWlJDG.rst
new file mode 100644
index 0000000000000..025b7e96a6e74
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2020-01-20-23-42-53.bpo-39393.gWlJDG.rst
@@ -0,0 +1,2 @@
+Improve the error message when attempting to load a DLL with unresolved
+dependencies.
diff --git a/Modules/_ctypes/callproc.c b/Modules/_ctypes/callproc.c
index 7b13fa041a205..65c6eb15a298b 100644
--- a/Modules/_ctypes/callproc.c
+++ b/Modules/_ctypes/callproc.c
@@ -1311,8 +1311,9 @@ static PyObject *load_library(PyObject *self, PyObject *args)
if (err == ERROR_MOD_NOT_FOUND) {
PyErr_Format(PyExc_FileNotFoundError,
- ("Could not find module '%.500S'. Try using "
- "the full path with constructor syntax."),
+ ("Could not find module '%.500S' (or one of its "
+ "dependencies). Try using the full path with "
+ "constructor syntax."),
nameobj);
return NULL;
} else if (err) {
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