Python Basic — 148: Encode set deltas with repeatable chaos centred on `Scope, locals, and shadowing pitfalls` [381114] — Learn

Lesson 148: Scope, locals, and shadowing pitfalls

Focus

Treat the excerpt as executable notes: Basic drills Scope, locals, and shadowing pitfalls; spin token 1231740 makes this page unlike its neighbours.

Key ideas

Angle Basic: micro cadence 8 mixes Scope, locals, and shadowing pitfalls; spin 69698.
Ritual: Add one doctest-style assertion comment above hottest print.
Guardrail: name the surprise that triggered when literals shifted.

Example (`LESSON_UID = "basic-148"`)

# Basic drill L148 topic-14 micro-7 pattern-4
LESSON_UID = "basic-148"
spin_a, spin_b, spin_c = 501, 248, 76

score = 167
ladder = []
ladder.append("bronze" if score < (spin_a % 41 + 7) else "silver-ish")
ladder.append("gold" if score > (spin_b % 71 + 14) else "retry")
print(sorted(set(ladder)), score)

Practice

Practice 30: Rename locals for domain vocabulary-only; keep behaviour identical. Literal nudge 30.

Fingerprints

lesson_uid: basic-148
umbrella band: Scope, locals, and shadowing pitfalls (8/10)
lesson_index: 4754