Telegram Group & Telegram Channel
🐍 7 “бесполезных” функций Python, которые на самом деле полезны

Инструменты из стандартной библиотеки, которые могут удивить:

1. textwrap.dedent() — убирает отступы у многострочного текста.

import textwrap
text = textwrap.dedent(\"\"\"
Привет!
Это текст с отступами.
\"\"\").strip()
print(text)

2. difflib.get_close_matches() — находит схожие строки.

import difflib
words = ["python", "java", "javascript"]
print(difflib.get_close_matches("javascrip", words))

3. uuid.uuid4() — создает уникальный идентификатор.

import uuid
print(uuid.uuid4())

4. shutil.get_terminal_size() — определяет размеры терминала.

import shutil
columns, rows = shutil.get_terminal_size()
print(f"Размер терминала: {columns}x{rows}")

5. functools.lru_cache() — сохраняет результаты функции в кэше.

from functools import lru_cache
@lru_cache(maxsize=None)
def fib(n):
if n < 2:
return n
return fib(n-1) + fib(n-2)
print(fib(100))

6. itertools.groupby() — группирует элементы по ключу.

from itertools import groupby
data = [(&apos;fruit&apos;, &apos;apple&apos;), (&apos;fruit&apos;, &apos;banana&apos;), (&apos;veg&apos;, &apos;carrot&apos;)]
for key, group in groupby(data, lambda x: x[0]):
print(key, list(group))

7. contextlib.suppress() — элегантная альтернатива конструкции try-except.

from contextlib import suppress
with suppress(FileNotFoundError):
open("not_exist.txt")

@Python_Community_ru



tg-me.com/Python_Community_ru/2569
Create:
Last Update:

🐍 7 “бесполезных” функций Python, которые на самом деле полезны

Инструменты из стандартной библиотеки, которые могут удивить:

1. textwrap.dedent() — убирает отступы у многострочного текста.

import textwrap
text = textwrap.dedent(\"\"\"
Привет!
Это текст с отступами.
\"\"\").strip()
print(text)

2. difflib.get_close_matches() — находит схожие строки.

import difflib
words = ["python", "java", "javascript"]
print(difflib.get_close_matches("javascrip", words))

3. uuid.uuid4() — создает уникальный идентификатор.

import uuid
print(uuid.uuid4())

4. shutil.get_terminal_size() — определяет размеры терминала.

import shutil
columns, rows = shutil.get_terminal_size()
print(f"Размер терминала: {columns}x{rows}")

5. functools.lru_cache() — сохраняет результаты функции в кэше.

from functools import lru_cache
@lru_cache(maxsize=None)
def fib(n):
if n < 2:
return n
return fib(n-1) + fib(n-2)
print(fib(100))

6. itertools.groupby() — группирует элементы по ключу.

from itertools import groupby
data = [(&apos;fruit&apos;, &apos;apple&apos;), (&apos;fruit&apos;, &apos;banana&apos;), (&apos;veg&apos;, &apos;carrot&apos;)]
for key, group in groupby(data, lambda x: x[0]):
print(key, list(group))

7. contextlib.suppress() — элегантная альтернатива конструкции try-except.

from contextlib import suppress
with suppress(FileNotFoundError):
open("not_exist.txt")

@Python_Community_ru

BY Python Community


Warning: Undefined variable $i in /var/www/tg-me/post.php on line 283

Share with your friend now:
tg-me.com/Python_Community_ru/2569

View MORE
Open in Telegram


Python Community Telegram | DID YOU KNOW?

Date: |

If riding a bucking bronco is your idea of fun, you’re going to love what the stock market has in store. Consider this past week’s ride a preview.The week’s action didn’t look like much, if you didn’t know better. The Dow Jones Industrial Average rose 213.12 points or 0.6%, while the S&P 500 advanced 0.5%, and the Nasdaq Composite ended little changed.

What Is Bitcoin?

Bitcoin is a decentralized digital currency that you can buy, sell and exchange directly, without an intermediary like a bank. Bitcoin’s creator, Satoshi Nakamoto, originally described the need for “an electronic payment system based on cryptographic proof instead of trust.” Each and every Bitcoin transaction that’s ever been made exists on a public ledger accessible to everyone, making transactions hard to reverse and difficult to fake. That’s by design: Core to their decentralized nature, Bitcoins aren’t backed by the government or any issuing institution, and there’s nothing to guarantee their value besides the proof baked in the heart of the system. “The reason why it’s worth money is simply because we, as people, decided it has value—same as gold,” says Anton Mozgovoy, co-founder & CEO of digital financial service company Holyheld.

Python Community from fr


Telegram Python Community
FROM USA