Add "incompat-" doc to pr dir for line numbers.

Add line numbers to default prompt.

Minor documentation escape sequence updatre

Deprecate utils tz (#14256) Closes #14249 1. Apply `black` to module. 2. Add docstrings mentioning deprecation as of IPython 8.19.0. 3. Implement and add `_warn_deprecated()` function. 4. Explicitly enable display of `DeprecationWarning` for this module.

Update IPython/utils/tz.py

Drop 3.9 (#14254) According to SPEC-0 this is about time, we thus bump minimal python, shift CI to test from 3.10 to 3.12, mark a curio test as x-fail as curio is not yet compatible with 3.12 but the fix in in trio main. Remove all conditionals that will never execute on 3.10+

Merge branch 'main' into drop39

Drop Python 3.9 According to SPEC-0 this is about time, we thus bump minimal python, shift CI to test from 3.10 to 3.12, mark a curio test as x-fail as curio is not yet compatible with 3.12 but the fix in in trio main. Remove all conditionals that will never execute on 3.10+

back to dev

release 8.18.1

Pin prompt_toolkit to 3.0.41+ (#14257) Closes #14255

Pin prompt_toolkit to 3.0.41+ Closes #14255

Add _warn_deprecated()

Add deprecation docstrings and warning.

Format existing code with black

back to dev

release 8.18.0

whats new 8.18.0 (#14253)

whats new 8.18.0

Fix memory leak in Qt event loop integration (#14240) (#14251) The QEventLoop object, `event_loop`, created in `IPython/terminal/pt_intputhooks/qt.py` L58 is not deleted when exiting the scope as passing `app` to the constructor parents the object to `app`. This creates a memory leak as QEventLoop objects are being accumulated. The issue was originally reported by @pag who also suggested the fix. `pytest IPython/terminal/tests/` runs through without errors. I have tested the changes and see no more accumulation of `QEventLoop` objects. This fixes #14240