01PY↗
Retry Decorator with Backoff
Automatically retry failed operations with exponential backoff.
import time
import functools
from typing import Tuple, Type
#decorator#retry
hardFind your
next move.
11 useful things
02PY↗
Async Retry Decorator
Asynchronously retry failed operations with exponential backoff for async functions.
import asyncio
import functools
from typing import Tuple, Type
#async#decorator
hard03PY↗
TTL Cache Decorator
Function caching with time-to-live (TTL) expiration.
import functools
import time
from typing import Any, Callable
#decorator#cache
medium04PY↗
Rate Limiter Decorator
Limit function execution rate to prevent overwhelming external services.
import functools
import time
from collections import defaultdict
from threading import Lock#decorator#rate-limit
hard05PY↗
Context Manager Decorator
Convert a generator function into a context manager.
import functools
from contextlib import contextmanager
from typing import Callable, Generator
#decorator#context-manager
medium06PY↗
Type and Value Validation Decorator
Validate function arguments and return values using type hints and custom validators.
import functools
import inspect
from typing import Any, Callable, Dict, List, get_type_hints
#decorator#validation
hard07PY↗
Performance Profiling Decorator
Measure and log function execution time and memory usage.
import functools
import time
import tracemalloc
from typing import Callable#decorator#profiling
medium08PY↗
Retry Decorator with Jitter
Retry failed operations with exponential backoff and random jitter to prevent thundering herd.
import functools
import random
import time
from typing import Tuple, Type#decorator#retry
hard09PY↗
Singleton Pattern Decorator
Ensure a class has only one instance and provide a global point of access to it.
import functools
from typing import Any, Dict
def singleton(cls):#decorator#singleton
easy10PY↗
Function Timeout Decorator
Add timeout functionality to prevent functions from running indefinitely.
import functools
import signal
from typing import Any, Callable
from concurrent.futures import ThreadPoolExecutor, TimeoutError#decorator#timeout
hard11PY↗
Authentication and Authorization Decorator
Add authentication and role-based authorization to functions.
import functools
from typing import Callable, List
class User:#decorator#authentication
medium