Add AI instruction for command-line form for running show_best_practices

More unit tests and some comments for traceability to Issue #618

Enable matplotlib unit tests for Python 3.14

Fixed bug in nested_expr introduced in 3.2.2, fixes #600

Prep for 3.2.2 release

Prep for 3.2.1 release

Fix docstring with invalid esc sequence

Backport config for readthedocs to 3.2.0

Prep for release

Update HowToUsePyparsing.rst with sample infix_notation for 4-functio…

…n arithmetic; break out parser-only version of mongodb_query_expression.py into step 0 example