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![import os
from pathlib import Path
from tempfile import TemporaryDirectory
import pytest
def count_dirs_and_files(directory_path: str = '.' ) -> tuple[int, int]:
"""Function for counting dirs and files in a directory."""
dirs, files = 0, 0
for _, directories, filenames in os.walk(directory_path):
dirs += len(directories)
files += len(filenames)
return dirs, files
def test_only_files():
with TemporaryDirectory(dir="/tmp") as dirname:
for i in range(1, 6):
(Path(dirname) / f'{i}.txt').write_text('hello')
assert count_dirs_and_files(dirname) == (0, 5)
# refactored using pytest's tmp_path fixture + parametrize
@pytest.mark.parametrize("num_files", [1, 5, 10])
def test_only_files_param(tmp_path, num_files):
for i in range(1, num_files + 1):
(tmp_path / f'{i}.txt').write_text('hello')
assert count_dirs_and_files(tmp_path) == (0, num_files)](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:uay2bzai5qhnwqcqz7ivsvzg/bafkreiek6n5hqufscypuha47rm6aqb3rkjnjrqsezjna5ayjarf63wzybq)
![from itertools import combinations
from difflib import SequenceMatcher
tags = ['python', 'pythonista', 'developer', 'development', 'dev', 'devs']
def similar(a: str, b: str) -> float:
return SequenceMatcher(None, a, b).ratio()
THRESHOLD = 0.8 # tune based on how strict you want to be
for a, b in combinations(tags, 2):
score = similar(a, b)
if score >= THRESHOLD:
print(f"{a} ≈ {b} → {score:.2f}")
# output:
# developer ≈ development → 0.80
# dev ≈ devs → 0.86](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:uay2bzai5qhnwqcqz7ivsvzg/bafkreiafzxjhee3qpt22a4mbjrmkurimk7xg5wlxxgwhcw3ebnfdcdbur4)
![import sys, time
start = time.time()
list_comp = [x for x in range(100_000_000)]
print(f"List: {sys.getsizeof(list_comp):,} bytes, {time.time() - start:.4f}s")
start = time.time()
gen_exp = (x for x in range(100_000_000))
print(f"Generator: {sys.getsizeof(gen_exp):,} bytes, {time.time() - start:.4f}s")](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:uay2bzai5qhnwqcqz7ivsvzg/bafkreiflggzcgbz2a45kd73he3koysxsf7a4qr47xf2q2wmocyv5gbu4v4)
