Consider escaping more characters when generating node ids

[nicoddemus]

As discussed in #2646:

We might consider escaping null bytes and other unprintable characters when generating node ids.

[CarycaKatarzyna]

Is it still actual? The code here

pytest/src/_pytest/compat.py

Lines 216 to 225 in 5e7f1ab

	_non_printable_ascii_translate_table = {
	i: "\\x{:02x}".format(i) for i in range(128) if i not in range(32, 127)
	}
	_non_printable_ascii_translate_table.update(
	{ord("\t"): "\\t", ord("\r"): "\\r", ord("\n"): "\\n"}
	)
	def _translate_non_printable(s: str) -> str:
	return s.translate(_non_printable_ascii_translate_table)

seems to be good at escaping unprintable bytes. Can you add any failed example?

[RonnyPfannschmidt]

I would like to deprecate non printable node ids, everything in a nodeid should be safe to handle

[CarycaKatarzyna]

Could you add instructions on how to create a nodeid with unprintable bytes?