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Add sorts/sleep_sort.py#13507

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NghiemNgocDuc wants to merge 3 commits intoTheAlgorithms:masterfrom
NghiemNgocDuc:sorting/sleep-sort
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Add sorts/sleep_sort.py#13507
NghiemNgocDuc wants to merge 3 commits intoTheAlgorithms:masterfrom
NghiemNgocDuc:sorting/sleep-sort

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@NghiemNgocDuc
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Describe your change:

Added a new and quirky sorting algorithm called Sleep Sort to the sorts directory.
This algorithm works by spawning a separate thread for each number and using time delays to order the output.
While not practical, it is an interesting demonstration of concurrency and timing-based sorting.
The implementation includes type hints, proper docstrings, and doctests as required by the contributing guidelines.

  • Add an algorithm?
  • Fix a bug or typo in an existing algorithm?
  • Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
  • Documentation change?

Checklist:

  • I have read CONTRIBUTING.md.
  • This pull request is all my own work -- I have not plagiarized.
  • I know that pull requests will not be merged if they fail the automated tests.
  • This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
  • All new Python files are placed inside an existing directory.
  • All filenames are in all lowercase characters with no spaces or dashes.
  • All functions and variable names follow Python naming conventions.
  • All function parameters and return values are annotated with Python type hints.
  • All functions have doctests that pass the automated testing.
  • All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
  • If this pull request resolves one or more open issues then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

Add `sort/sleep_sort.py`: a novelty sleep-sort implementation with a simulated mode (safe for CI) and an optional real threaded mode.

### Files added
- sort/sleep_sort.py

### Notes
- File name is snake_case.
- Includes doctests; tested with `python -m doctest -v sort/sleep_sort.py`.
- Follows repository style.

If this addresses an issue, add: `Fixes #<issue-number>`
@algorithms-keeper algorithms-keeper bot added require descriptive names This PR needs descriptive function and/or variable names require tests Tests [doctest/unittest/pytest] are required labels Oct 15, 2025
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Click here to look at the relevant links ⬇️

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Python:

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import time


def sleep_sort(a: List[int], simulate: bool = True, scale: float = 0.01) -> None:

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Please provide descriptive name for the parameter: a

results: List[int] = []
lock = threading.Lock()

def worker(value: int) -> None:

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As there is no test file in this pull request nor any test function or class in the file sorts/sleep_sort.py, please provide doctest for the function worker

a[:] = results


def main() -> None:

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As there is no test file in this pull request nor any test function or class in the file sorts/sleep_sort.py, please provide doctest for the function main

@algorithms-keeper algorithms-keeper bot added the awaiting reviews This PR is ready to be reviewed label Oct 15, 2025
Add sorts/sleep_sort.py: a novelty sleep-sort implementation with a simulated mode (safe for CI) and an optional real threaded mode.

### Files added
- sorts/sleep_sort.py

### Notes
- File name is snake_case.
- Includes doctests; tested with python -m doctest -v sort/sleep_sort.py.
- Follows repository style.

If this addresses an issue, add: Fixes #<issue-number>
@algorithms-keeper algorithms-keeper bot removed the require descriptive names This PR needs descriptive function and/or variable names label Oct 15, 2025
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Click here to look at the relevant links ⬇️

🔗 Relevant Links

Repository:

Python:

Automated review generated by algorithms-keeper. If there's any problem regarding this review, please open an issue about it.

algorithms-keeper commands and options

algorithms-keeper actions can be triggered by commenting on this PR:

  • @algorithms-keeper review to trigger the checks for only added pull request files
  • @algorithms-keeper review-all to trigger the checks for all the pull request files, including the modified files. As we cannot post review comments on lines not part of the diff, this command will post all the messages in one comment.

NOTE: Commands are in beta and so this feature is restricted only to a member or owner of the organization.

results: List[int] = []
lock = threading.Lock()

def worker(value: int) -> None:

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As there is no test file in this pull request nor any test function or class in the file sorts/sleep_sort.py, please provide doctest for the function worker

@algorithms-keeper algorithms-keeper bot added the tests are failing Do not merge until tests pass label Oct 15, 2025
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cclauss commented Oct 15, 2025

@cclauss cclauss closed this Oct 15, 2025
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2 participants