bpo-28401: prevent Py_DEBUG builds from trying to import limited ABI modules (GH-1766)

stefanor · miss-islington · commit 338d54f0a59d · 2018-11-16T15:52:52.000-08:00
[Issue 28401](https://bugs.python.org/issue28401): Don't attempt to import the stable API extensions, they are not supported in PyDEBUG builds (which don't implement that ABI). https://bugs.python.org/issue28401
diff --git a/Misc/NEWS.d/next/Core and Builtins/2018-11-03-10-37-29.bpo-28401.RprDIg.rst b/Misc/NEWS.d/next/Core and Builtins/2018-11-03-10-37-29.bpo-28401.RprDIg.rst
@@ -0,0 +1,3 @@
+Debug builds will no longer to attempt to import extension modules built
+for the ABI as they were never compatible to begin with.
+Patch by Stefano Rivera.
diff --git a/Python/dynload_shlib.c b/Python/dynload_shlib.c
@@ -38,7 +38,9 @@ const char *_PyImport_DynLoadFiletab[] = {
     ".dll",
 #else  /* !__CYGWIN__ */
     "." SOABI ".so",
+#ifndef Py_DEBUG
     ".abi" PYTHON_ABI_STRING ".so",
+#endif /* ! Py_DEBUG */
     ".so",
 #endif  /* __CYGWIN__ */
     NULL,

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+Debug builds will no longer to attempt to import extension modules built`
	`2`	`+for the ABI as they were never compatible to begin with.`
	`3`	`+Patch by Stefano Rivera.`