Missing whitespaces when using Py_CheckRecursiveCall & co

[picnixz]

Bug report

Bug description:

The message must be prefixed by a whitespace since _Py_CheckRecursiveCall directly appends them to "maximum recursion depth exceeded":

cpython/Python/ceval.c

Lines 329 to 335 in dc76a4a

	if (tstate->c_recursion_remaining <= 0) {
	tstate->recursion_headroom++;
	_PyErr_Format(tstate, PyExc_RecursionError,
	"maximum recursion depth exceeded%s",
	where);
	tstate->recursion_headroom--;
	++tstate->c_recursion_remaining;

.

Alternatively, we could make it so that a whitespace is automatically added and strip leading whitespaces if the "where" is the empty string (we wouldn't strip whitespaces in custom messages though I think).

For now, I'll just add the missing whitespaces where it should be.

CPython versions tested on:

CPython main branch

Operating systems tested on:

No response

Linked PRs

• gh-126035: add missing whitespace to *Py_EnterRecursiveCall messages #126036
• [3.13] gh-126035: add missing whitespace to *Py_EnterRecursiveCall() messages (GH-126036) #126058
• [3.12] gh-126035: add missing whitespace to *Py_EnterRecursiveCall() messages (GH-126036) #126059

[picnixz]

Closing since completed and backported.