… and avoid potentially failing to do so.

Closes #5873

…ce we read it from a pipe anyway and don't want to care about platform specific encoding issues.

This reverts commit a6fecd0.

Reverted due to missing changes that are currently only available in Cython 3.1.

…orms since we read it from a pipe anyway and don't want to care about platform specific encoding issues."

This reverts commit 1b0b49f.
It produced test failures on old Python versions.

…ils in the stable 3.0 branch for other reasons).

Closes #5873

* Clarify performance hint wording

I'm getting the impression that it this performance hint isn't
sufficiently clear about what it wants you to modify.

* Update Cython/Compiler/PyrexTypes.py

Co-authored-by: Matus Valo <matusvalo@users.noreply.github.com>

* Simpify implementation

* Fiddle with escaping of function_name

* Fix an issue trying list.index indexing in FusedNode

In some Python versions, generating the error message when .index
fails to find an index leads to a compiler crash.

Fix this by not relying on type being fully set up while generating
__str__.

Fixes #5894 and #5588

* Check "in" before indexing

And add a missing function.

Possibly worth backporting to 3.0.x (at least partly)

Fix conflicting names of cpdef enum to_py functions when the an
enum with the name name exists in multiple modules. Instead use
the cname to name the to_py function since we have already
ensured that it is unique and mangled with the module name.

Possibly fixes #5860 (it definitely fixes a real bug, but that
project has far too many dependencies for me to test, so who knows
if it fixes *that* bug).

Ignore the generator expression iterator when searching for yield/await nodes - the iterator is evaluated in the outer scope instead.

Closes #5851