Python debug symbols in unreal crash dialog?

How would I go about getting python debug symbols to show up in the crash log? I’m using python in 4.20. I’ve been getting a number of crashes that seem to originate in python callbacks, but it’s difficult to know where exactly the error is occurring without seeing the traceback into python-land. Ex:

Assertion failed: !FUObjectThreadContext::Get().IsRoutingPostLoad [File:D:\Build\++UE4\Sync\Engine\Source\Runtime\CoreUObject\Private\UObject\ScriptCore.cpp] [Line: 1189] Cannot call UnrealScript (EditorAssetLibrary /Script/EditorScriptingUtilities.Default__EditorAssetLibrary - Function /Script/EditorScriptingUtilities.EditorAssetLibrary:LoadAsset) while PostLoading objects

UE4Editor_Core!FDebug::AssertFailed() [d:\build\++ue4\sync\engine\source\runtime\core\private\misc\assertionmacros.cpp:425]
UE4Editor_CoreUObject!UObject::ProcessEvent() [d:\build\++ue4\sync\engine\source\runtime\coreuobject\private\uobject\scriptcore.cpp:1189]
UE4Editor_PythonScriptPlugin!PyUtil::InvokeFunctionCall() [d:\build\++ue4\sync\engine\plugins\experimental\pythonscriptplugin\source\pythonscriptplugin\private\pyutil.cpp:525]
UE4Editor_PythonScriptPlugin!FPyWrapperObject::CallFunction_Impl() [d:\build\++ue4\sync\engine\plugins\experimental\pythonscriptplugin\source\pythonscriptplugin\private\pywrapperobject.cpp:299]
UE4Editor_PythonScriptPlugin!FPyWrapperObject::CallClassMethodWithArgs_Impl() [d:\build\++ue4\sync\engine\plugins\experimental\pythonscriptplugin\source\pythonscriptplugin\private\pywrapperobject.cpp:318]
UE4Editor_PythonScriptPlugin!FPyMethodWithClosureDef::Call() [d:\build\++ue4\sync\engine\plugins\experimental\pythonscriptplugin\source\pythonscriptplugin\private\pymethodwithclosure.cpp:160]
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These python27 lines would be a lot more helpful if I could see line numbers.