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WEEKLY MATERIALS · SPRING 2026

Weekly Materials

Showing Level I materials for Data Iteration. Password required to download the notebooks.

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  1. LESSON 01
    Data Iteration · Part 1
    for with range; countdowns; accumulator pattern; loop variable in f-strings.
    PCEP 2.2
    GUIDE →PRACTICE →
  2. LESSON 02
    Data Iteration · Part 2
    for over lists; sums, counts, filters, building new lists, running max/min.
    PCEP 2.2
    GUIDE →PRACTICE →
  3. LESSON 03
    Data Iteration · Part 3
    for over dicts; keys/values/items; sum, argmax, reverse mapping, filter by value.
    PCEP 2.2
    GUIDE →PRACTICE →
  4. LESSON 04
    Data Iteration · Part 4
    for over strings; iterate chars, count letters/vowels, build new strings char by char.
    PCEP 2.2
    GUIDE →PRACTICE →
  5. LESSON 05
    Data Iteration · Part 5
    while loops; countdowns, sentinels, break and continue, pass placeholder.
    PCEP 2.2
    GUIDE →PRACTICE →
  6. LESSON 06
    Data Iteration · Part 6
    Nested for; multiplication tables; 2D list row/column iteration; simple coordinate walks.
    PCEP 2.2
    GUIDE →PRACTICE →