PS E:\cpython> PCbuild\build.bat --experimental-jit Using "E:\cpython\PCbuild\\..\externals\pythonx86\tools\python.exe" (found in externals directory) Fetching external libraries... bzip2-1.0.8 already exists, skipping. mpdecimal-4.0.0 already exists, skipping. sqlite-3.50.4.0 already exists, skipping. xz-5.8.1.1 already exists, skipping. zlib-ng-2.2.4 already exists, skipping. zstd-1.5.7 already exists, skipping. Fetching external binaries... libffi-3.4.4 already exists, skipping. openssl-bin-3.5.5 already exists, skipping. tcltk-8.6.15.0 already exists, skipping. llvm-21.1.4.0 already exists, skipping. Finished. Using "D:\Microsoft Visual Studio\MSBuild\Current\Bin\msbuild.exe" (found in the Visual Studio installation) Using "E:\cpython\PCbuild\\..\externals\pythonx86\tools\python.exe" (found in externals directory) E:\cpython>"D:\Microsoft Visual Studio\MSBuild\Current\Bin\msbuild.exe" "E:\cpython\PCbuild\pcbuild.proj" /t:Build /m /nologo /v:m /clp:summary /p:Configuration=Release /p:Platform=x64 /p:IncludeExternals=true /p:IncludeCTypes=true /p:IncludeSSL=true /p:IncludeTkinter=true /p:DisableGil= /p:UseTestMarker= /p:GIT="C:\Program Files\Git\cmd\git.exe" /p:UseJIT=true /p:UseTIER2=1 /p:PyStats= /p:UseTailCallInterp= /p:DisableRemoteDebug= /p:StackRefDebug= /p:UsePymallocHugepages= _freeze_module.vcxproj -> E:\cpython\PCbuild\win32\_freeze_module.exe zlib-ng.vcxproj -> E:\cpython\PCbuild\amd64\zlib-ng.lib Killing any running python.exe instances... Regenerate Global Objects # not changed: E:\cpython\Include\internal\pycore_global_strings.h # not changed: E:\cpython\Include\internal\pycore_runtime_init_generated.h # not changed: E:\cpython\Include\internal\pycore_unicodeobject_generated.h # not changed: E:\cpython\Include\internal\pycore_global_objects_fini_generated.h ============================================================= JIT support for x86_64-pc-windows-msvc is still experimental! Please report any issues you encounter. ============================================================= Regenerate cases Traceback (most recent call last): File "E:\cpython\Tools\cases_generator\opcode_id_generator.py", line 61, in <module> data = analyze_files(args.input) File "E:\cpython\Tools\cases_generator\analyzer.py", line 1424, in analyze_files return analyze_forest(parser.parse_files(filenames)) ~~~~~~~~~~~~~~~~~~^^^^^^^^^^^ File "E:\cpython\Tools\cases_generator\parser.py", line 46, in parse_files src = file.read() UnicodeDecodeError: 'gbk' codec can't decode byte 0x94 in position 33327: illegal multibyte sequence E:\cpython\PCbuild\regen.targets(97,5): error MSB3073: Command ""E:\cpython\PCbuild\\..\externals\pythonx86\tools\python.exe" Tools\cases_generator\opcode_id_generator.py Python\bytecodes.c" exited with code 1. [E:\cpython\PCbuild\pythoncore.vcxproj] Build FAILED. E:\cpython\PCbuild\regen.targets(97,5): error MSB3073: Command ""E:\cpython\PCbuild\\..\externals\pythonx86\tools\python.exe" Tools\cases_generator\opcode_id_generator.py Python\bytecodes.c" exited with code 1. [E:\cpython\PCbuild\pythoncore.vcxproj] 0 Warning(s) 1 Error(s) Time Elapsed 00:00:07.25