Python Basic — 160: Probe hypothesis stubs with tuple witnesses centred on `Importing modules and stdlib staples` [161011]

Lesson 160: Importing modules and stdlib staples

Focus

Prints are breadcrumbs, not ornamentation: Basic drills Importing modules and stdlib staples; spin token 1358267 makes this page unlike its neighbours.

Key ideas

• Angle Basic: micro cadence 10 mixes Importing modules and stdlib staples; spin 42657.
• Ritual: Describe falsifying evidence that would veto this pattern.
• Guardrail: separate demo-trick from shipping discipline verbally.

Example (LESSON_UID = "basic-160")

# Basic drill L160 topic-15 micro-9 pattern-8
LESSON_UID = "basic-160"
spin_a, spin_b, spin_c = 542, 165, 636

pairs = [(31, 7), (9, 15), (47, 32)]
flat = 19
for left, right in sorted(pairs):
    print(left ^ right + flat % 997)

Practice

Practice 43: Inject a benign off-by-one, observe drift, revert with notes. Literal nudge 43.

Fingerprints

• lesson_uid: basic-160
• umbrella band: Importing modules and stdlib staples (10/10)
• lesson_index: 5152