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Tighten up psf/black and flake8 (#2024)

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* Tighten up psf/black and flake8

* Fix some tests

* Fix some E741

* Fix some E741

* updating DIRECTORY.md

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>
This commit is contained in:
Christian Clauss
2020-05-22 08:10:11 +02:00
committed by GitHub
parent 21ed8968c0
commit 1f8a21d727
124 changed files with 583 additions and 495 deletions
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5
maths/collatz_sequence.py
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@ -18,8 +18,9 @@ def collatz_sequence(n: int) -> List[int]:
Traceback (most recent call last):
...
Exception: Sequence only defined for natural numbers
>>> collatz_sequence(43)
[43, 130, 65, 196, 98, 49, 148, 74, 37, 112, 56, 28, 14, 7, 22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1]
>>> collatz_sequence(43) # doctest: +NORMALIZE_WHITESPACE
[43, 130, 65, 196, 98, 49, 148, 74, 37, 112, 56, 28, 14, 7,
22, 11, 34, 17, 52, 26, 13, 40, 20, 10, 5, 16, 8, 4, 2, 1]
"""
if not isinstance(n, int) or n < 1: