[xigoi]

Python does have an auto-formatter [6], so clearly indentation doesn't prevent that.

> Also, forget a brace in your program, just one, and the compiler can tell.

Should we duplicate every character, so the compiler can tell if you leave one out? This is not a radiation-hardened quine [7].

> editor settings can make it much easier to break things with significant whitespace.

Then use an editor which doesn't.

> Selecting all code contained in a brace or a parents is so much easier (in vim the % movement) than if you have to walk lines.

I have a plugin for Neovim that adds indentation-based motions. The implementation is trivial.

[6] https://github.com/psf/black

[7] https://codegolf.stackexchange.com/questions/57257/radiation...