Python Programming

Advanced Python

Beginner Lesson 10 of 10

Advanced Python

Take your Python skills to the next level with advanced concepts.

Decorators

def timer(func):
    import time
    def wrapper(*args, **kwargs):
        start = time.time()
        result = func(*args, **kwargs)
        print(f"Executed in {time.time() - start:.2f}s")
        return result
    return wrapper

@timer
def slow_function():
    import time
    time.sleep(1)

Generators

def countdown(n):
    while n > 0:
        yield n
        n -= 1

for num in countdown(5):
    print(num)

# Generator expressions
squares = (x**2 for x in range(10))

Context Managers

from contextlib import contextmanager

@contextmanager
def managed_resource():
    print("Setup")
    yield "resource"
    print("Cleanup")

Type Hints

def greet(name: str, age: int = 0) -> str:
    return f"Hello {name}, you are {age}"

from typing import List, Dict, Optional
def process(items: List[str]) -> Dict[str, int]:
    return {item: len(item) for item in items}

Async Programming

import asyncio

async def fetch_data():
    await asyncio.sleep(1)
    return "data"

async def main():
    result = await fetch_data()
    print(result)

asyncio.run(main())

Congratulations!

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