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