Lazily load psapi.dll in ctypes · Issue #145307 · python/cpython · GitHub
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Lazily load psapi.dll in ctypes #145307

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Lazily load psapi.dll in ctypes#145307
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zooba
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OS-windowsperformancePerformance or resource usagestdlibStandard Library Python modules in the Lib/ directorytopic-ctypestype-bugAn unexpected behavior, bug, or error

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@zooba
zooba
opened on Feb 27, 2026

Bug report

Importing ctypes.util will load psapi.dll on Windows eagerly, which isn't necessary until the actual function that needs it is called. We should make it load lazily.

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OS-windowsperformancePerformance or resource usagestdlibStandard Library Python modules in the Lib/ directorytopic-ctypestype-bugAn unexpected behavior, bug, or error

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