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Refactor find_newest to avoid duplicates in notebooks

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Updated the logic in find_newest to prevent duplicate entries in the 'New' category.
This commit is contained in:
Peter Norvig
2026-09-02 15:31:56 -07:00
committed by GitHub
parent 6adb699d55
commit 504da3f655
1 changed files with 4 additions and 4 deletions
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py/pytudes.py
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@@ -75,7 +75,7 @@ notebooks = {
("Stubborn number endings", 2024, 'Stubborn.ipynb', 'Any number ending in 5 has a square that also ends in 5. What other endings are like this?'), ("Stubborn number endings", 2024, 'Stubborn.ipynb', 'Any number ending in 5 has a square that also ends in 5. What other endings are like this?'),
('Square Sum Chain Puzzle', 2020, 'SquareSum.ipynb', 'Place the numbers from 1 to n in a chain (or a circle) such that adjacent pairs sum to a perfect square'), ('Square Sum Chain Puzzle', 2020, 'SquareSum.ipynb', 'Place the numbers from 1 to n in a chain (or a circle) such that adjacent pairs sum to a perfect square'),
("When is Cheryl's Birthday?", 2020, 'Cheryl.ipynb', "Solving the *Cheryl's Birthday* logic puzzle"), ("When is Cheryl's Birthday?", 2020, 'Cheryl.ipynb', "Solving the *Cheryl's Birthday* logic puzzle"),
('When Cheryl Met Eve: A Birthday Story', 2015, 'Cheryl-and-Eve.ipynb', "Inventing new puzzles in the Style of Cheryl's Birthday"), ('When Cheryl Met Eve: A Birthday Story', 2015, 'Cheryl-and-Eve.ipynb', "Inventing puzzles in the Style of Cheryl's Birthday"),
('xkcd 1313: Regex Golf', 2015, 'xkcd1313.ipynb', 'Find the smallest regular expression; inspired by Randall Munroe'), ('xkcd 1313: Regex Golf', 2015, 'xkcd1313.ipynb', 'Find the smallest regular expression; inspired by Randall Munroe'),
('xkcd 1313: Regex Golf (Part 2: Infinite Problems)', 2015, 'xkcd1313-part2.ipynb', 'Regex Golf: better, faster, funner (with Stefan Pochmann)')], ('xkcd 1313: Regex Golf (Part 2: Infinite Problems)', 2015, 'xkcd1313-part2.ipynb', 'Regex Golf: better, faster, funner (with Stefan Pochmann)')],
@@ -194,12 +194,12 @@ def format_notebooks() -> str:
find_newest(notebooks) find_newest(notebooks)
return '\n'.join(format_category(name) for name in notebooks) return '\n'.join(format_category(name) for name in notebooks)
def find_newest(notebooks, label='New', year=new_year) -> None: def find_newest(notebooks, New='New', year=new_year) -> None:
"""Mutate `notebooks['New']` to have a collection of newest notebooks.""" """Mutate `notebooks['New']` to have a collection of newest notebooks."""
for category in notebooks: for category in notebooks:
for line in notebooks[category]: for line in notebooks[category]:
if line[1] >= year: if line[1] >= year and line not in notebooks[New]:
notebooks[label].append(line) notebooks[New].append(line)
notebooks[label].sort(key=lambda line: (-line[1], line[0])) notebooks[label].sort(key=lambda line: (-line[1], line[0]))
def format_category(category) -> str: def format_category(category) -> str: