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[3.10] gh-101614: Don't treat python3_d.dll as a Python DLL when checking extension modules for incompatibility (GH-101615) #101691

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merged 1 commit into from
Feb 8, 2023
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[3.10] gh-101614: Don't treat python3_d.dll as a Python DLL when checking extension modules for incompatibility (GH-101615) #101691

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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Windows/2023-02-07-18-22-54.gh-issue-101614.NjVP0n.rst
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Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Correctly handle extensions built against debug binaries that reference ``python3_d.dll``.
9 changes: 5 additions & 4 deletions Python/dynload_win.c
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Original file line number Diff line number Diff line change
Expand Up @@ -123,14 +123,15 @@ static char *GetPythonImport (HINSTANCE hModule)
!strncmp(import_name,"python",6)) {
char *pch;

#ifndef _DEBUG
/* In a release version, don't claim that python3.dll is
a Python DLL. */
/* Don't claim that python3.dll is a Python DLL. */
#ifdef _DEBUG
if (strcmp(import_name, "python3_d.dll") == 0) {
#else
if (strcmp(import_name, "python3.dll") == 0) {
#endif
import_data += 20;
continue;
}
#endif

/* Ensure python prefix is followed only
by numbers to the end of the basename */
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