> -3.7-32-32     C:\Python37_x86\python.exe
> -3.6-32-32     C:\Python36_x86\python.exe
> -3.5-32-32     C:\Python35_x86\python.exe

MAX_VERSION_SIZE was increased, so the INSTALLED_PYTHON version string is now the full registry key name with the "-32" suffix. If that's intentional, you'll have to account for it in show_python_list. But I don't think the "-32" suffix belongs in the version string.