Avoid using Py_OptimizeFlag in the Limited API.

[scoder]

Closes #5605

[scoder]

I actually wonder if it's worth using the (not so public) _PyConfig_… C-API for the "normal" CPython case. It's a one time price to pay at import time, so it might simply be enough to do the same dance also in CPython 3.12 and later (without Limited API).

[da-woods]

I wonder if you could pass the module in as an argument - I think the function might be defined too early to have access to the module object.

Apart from that, it looks simpler (and better) than what I was planning.

[da-woods]

I wonder if you could pass the module in as an argument

This doesn't work, but:

cython/Cython/Compiler/Code.py

Lines 610 to 618 in 6ad6ca0

	if self.init:
	writer = output['init_globals']
	writer.putln("/* %s.init */" % self.name)
	if isinstance(self.init, basestring):
	writer.put(self.format_code(self.init))
	else:
	self.init(writer, output.module_pos)
	writer.putln(writer.error_goto_if_PyErr(output.module_pos))
	writer.putln()

It looks like it checks for PyErr_Occurred after each of these init segments, so there's no need to write unraisable.

I actually wonder if it's worth using the (not so public) PyConfig… C-API for the "normal" CPython case. It's a one time price to pay at import time, so it might simply be enough to do the same dance also in CPython 3.12 and later (without Limited API).

Inclined to agree with this.