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// Exercise
attendance_tracker.py
Mark students present one by one. Enrolled set, present set, absent via set difference. add(), in, and one line that do…
// Exercise
even_numbers_2.py
Even Numbers upgraded — get_even() rewritten as a list comprehension. Four lines became one. Same result, less code.
// Exercise
daily_notes.py
Daily Notes — write a note, save it with a timestamp, append forever. Run it tomorrow and everything's still there.
// Exercise
shopping_list_3.py
Shopping List v3 — the list now survives. Saves to CSV on quit, loads on start. Run it tomorrow and everything's still …
// Exercise
squad_utils.py
The shared module. Three functions — format_name, is_active, squad_summary. Written once, imported by everything else.
// Exercise
briefing.py
Imports format_name and is_active from squad_utils. Prints a clean roster with status for each member.
// Exercise
report.py
Imports squad_summary from squad_utils. Prints total, active, and inactive count in three lines.
// Exercise
calories_tracker_r3.py
Calories Tracker — Round 3. Complete working file: add food with validation, filter last 7 days, display results. First…
// Exercise
calories_tracker_r4.py
Calories Tracker — Round 4. Discipline analysis added: daily calorie sums, personal target comparison, sorted output. T…