How to download Rosetta 2 on MacBook Air?

swim_ee@Reins-MacBook-Air ~ % softwareupdate --install-rosetta

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2023-04-06 08:49:07.043 softwareupdate[1416:59696] Package Authoring Error: 002-75531: Package reference com.apple.pkg.RosettaUpdateAuto is missing installKBytes attribute

Install of Rosetta 2 finished successfully

swim_ee@Reins-MacBook-Air ~ %

It does not working ?

trrminal answer was:

zsh: command not found

It is my own developed videoanalyses soft written in Phyton 2.5 using wx and Mplayer Open Sourse for converting videofiles

it was done In 2008 and works perfectly up to OS Mojave 32 bit please help me to run it in new M1 and M2

I did used my soft in Intel based Mac's with Catalina and Ventura so that made external STARTUP disk with Mojave and it works but nat any more with Mac's M1 M2 because new Mac's does not let using Startup disk with Mojave

Why ?

No eny effects

what is wrong ?

Ok I know that but if so can you help me to rewrite my old script to 64bit ?

please give me some advice

now I tried all advices including Chat GPT ones but still no progress

does Apple will plan to do more then Rosetta 2 to support older soft on M1 ?