Sublime で Powershell を CMD に変更する方法

if os.name == 'nt':
            # if os.path.exists(os.environ['SYSTEMROOT'] +
            #         '\System32\WindowsPowerShell\v1.0\powershell.exe'):
            #     # This mimics the default powershell colors since calling
            #     # subprocess.POpen() ends up acting like launching powershell
            #     # from cmd.exe. Normally the size and color are inherited
            #     # from cmd.exe, but this creates a custom mapping, and then
            #     # the LaunchPowerShell.bat file adjusts some other settings.
            #     key_string = 'Console\%SystemRoot%_system32_' + 
            #         'WindowsPowerShell_v1.0_powershell.exe'
            #     try:
            #         key = _winreg.OpenKey(_winreg.HKEY_CURRENT_USER,
            #             key_string)
            #     except (WindowsError):
            #         key = _winreg.CreateKey(_winreg.HKEY_CURRENT_USER,
            #             key_string)
            #         _winreg.SetValueEx(key, 'ColorTable05', 0,
            #             _winreg.REG_DWORD, 5645313)
            #         _winreg.SetValueEx(key, 'ColorTable06', 0,
            #             _winreg.REG_DWORD, 15789550)
            #     default = os.path.join(package_dir, 'PS.bat')
            #     sublime_terminal_path = os.path.join(sublime.packages_path(), installed_dir)
            #     # This should turn the path into an 8.3-style path, getting around unicode
            #     # issues and spaces
            #     buf = create_unicode_buffer(512)
            #     if windll.kernel32.GetShortPathNameW(sublime_terminal_path, buf, len(buf)):
            #         sublime_terminal_path = buf.value
            #     os.putenv('sublime_terminal_path', sublime_terminal_path.replace(' ', '` '))
            # else :
            default = os.environ['SYSTEMROOT'] + '\System32\cmd.exe'

        elif sys.platform == 'darwin':