[j1elo]

Like I mentioned to the sibling parent, 100 is an OK middle ground. 120, or more, is too long already, and 160 is waaaay beyond what I'd consider acceptable. No way you can fit 2 side-by-side editor panes with those line lengths, unless you use a tiny sized font.

I get it, 160 looks OK and fits into a 4K display without any other windows open. I believe working with dual panes is more productive, so I'll always stand behind shorter line lengths that allow for it.

Even Rust, a modern language that is usually said to collect the best learnings from the industry, thankfully chose a conservative and sensible 100 chars limit by default.

[culi]

I wasn't aware Rust chose a 100 line default. I'll definitely be using this to argue on my teams for why we should stretch the line length limit past 80. Thank you Rust for moving the industry forward

[j1elo]

I guess Rust made the same reasoning than Python. For this kind of things, the PEP documents tend to be well based on experience and be a good guideline which even applies for other languages. Check the PEP 8 that I linked in my comment: although they recommend a very conservative limit of 80 (79 actually) it says that if it makes sense, 100 (99) can be used too. And that's from 2001.