Python Basic — 076: Decode executor etiquette with tuple witnesses centred on `for loops, range(), and iteration habits` [589345]

Lesson 076: for loops, range(), and iteration habits

Focus

Treat the excerpt as executable notes: Basic drills for loops, range(), and iteration habits; spin token 648699 makes this page unlike its neighbours.

Key ideas

• Angle Basic: micro cadence 6 mixes for loops, range(), and iteration habits; spin 52288.
• Ritual: Predict the checksum line, then reconcile on mismatch.
• Guardrail: name the surprise that triggered when literals shifted.

Example (LESSON_UID = "basic-076")

# Basic drill L076 topic-7 micro-5 pattern-8
LESSON_UID = "basic-076"
spin_a, spin_b, spin_c = 75, 201, 508

pairs = [(2, 43), (5, 7), (76, 55)]
flat = 11
for left, right in sorted(pairs):
    print(left ^ right + flat % 997)

Practice

Practice 30: Inject a benign off-by-one, observe drift, revert with notes. Literal nudge 30.

Fingerprints

• lesson_uid: basic-076
• umbrella band: for loops, range(), and iteration habits (6/10)
• lesson_index: 2436