Pedagogy: move 00_introduction/30_python_review_2 → 06_python_advanced/{50_functional_programming, 55_pathlib_files}

[kwlee2025cpp]

Goal

00_introduction/30_python_review_2.ipynb mixes three topics:

• Comprehensions (list, dict, set, generator) — moving to 06/30 via Pedagogy: extract comprehensions into standalone notebook under 06_python_advanced/ #394
• Functional programming (map, filter, all, any, zip, closures, lambda)
• pathlib + file I/O with context managers

Once #394 extracts comprehensions, the remaining content is two separate topics that deserve their own notebooks.

Scope

Create:

• 06_python_advanced/50_functional_programming.ipynb — map, filter, all, any, zip, lambda, closures
• 06_python_advanced/55_pathlib_files.ipynb — pathlib intro, with-statement, encoding considerations, simple file I/O patterns

Retire 00_introduction/30_python_review_2.ipynb after both new notebooks exist and #394 has landed.

Dependency

• Pedagogy: extract comprehensions into standalone notebook under 06_python_advanced/ #394 must land first (extracts comprehensions); otherwise this issue's split would lose content.

Open question

pathlib could arguably live in 03_python_basics/70_file_io (per #391). The Path API is enough of an upgrade over plain strings that grouping it with advanced-tools also makes sense. Open to feedback during execution.

Why

• Same motivation as Pedagogy: split 20_python_review into focused notebooks under 03_python_basics/ #391: focused notebooks beat one mixed one.
• Sets up clean 06_ shape with each Python idiom in its own file.

Acceptance

• Both new notebooks exist and run end-to-end.
• Each has at least 2 exercises.
• Old 30_python_review_2.ipynb removed.