If you wrote a python script a few years ago in Python 2 it isn't supported today, never mind in 50 years. When Python 4 rolls around some time in the next 20 years, all your Python 3 code will break.
If in the meantime Bash has fallen out of favor, have fun identifying what all these cryptic commands do, without having an interpreter available to check your assumption of what it's doing.
Yes, granted, Bash is more likely to stay, since it has stayed for a long time now. But given a future where there's neither Bash nor Python anymore, I'd prefer porting the Python script.
But I'd sooner port a Python 2 script from a few years ago to Python 3 than try to understand a Bash script from a few years ago.
2. Bash is not that complex of a language; it mostly just has somewhat arcane shorthands, like `$@` and `-n` and such. So, yes, you need the manual, but it's not a lot of mental effort.
Well, Python 2 code will likely just work too.
> 2. Bash is not that complex of a language; it mostly just has somewhat arcane shorthands, like `$@` and `-n` and such. So, yes, you need the manual, but it's not a lot of mental effort.
If you're only counting bash qua bash then yes, but in practice most of the logic of a "bash script" will be in (non-standardised) commands that are invoked from it rather than the script itself.
Certainly with Python being one of the top languages in the wold today, the pressure to support backwards compatibility is much higher than it was back in 2007.
We are in the very infancy of computer programming. Computers will likely be around for centuries, maybe even thousands of years. The best time to remove historical baggage and get everyone to switch was 10 years ago, the second best is now. IPv6 shows that if you "treat users nicely" you might not live to see the results.
And obviously we benefit too because we get to use a better language.
I don't believe it would take that much work to keep python 2 in maingence mode, and I also think if the PSF asked for a company to officially take over they would easily find one.