Some nice/interesting posts of mine:

• Fast zip_equal (like Python 3.10's zip(..., strict=True).
• itertools.groupby explained.
• Really nice: [2, a, b, 1, c, 3, d, e, f] ⇒ [[2, a, b], [1, c], [3, d, e, f]]
• Really silly: List comprehension with state.