Missing the point of loose languages

I hear you, but then I had to deal with upgrading some email lib from 2 to 3 which was mixing bytes and strings and it was so much easier to do in stages by first annotating the functions with types, and fixing mistakes, then doing the py3 upgrade.

Until I started annotating with types, I was dealing with "Oh, that's a bytes regex, doesn't work on str", on line xxx. And other errors, where as being careful and making sure the encoding/decoding happened exactly once, and using the types to check that across all the functions and not playing wack-a-mole with errors is so much nicer.

And when I'm working with pandas, I do want to know if I have a DF with only one column vs a Series, as the operations are different, but it's just `df['col'] ` vs `df[['col']]` to get each one. (I think). So I already need to check and keep the types separate, why not ask the compiler for help?