Python_Hacks

a, b = 5, 10
a, b = b, a

nested = [[1, 2], [3, 4], [5]]
flat = [item for sublist in nested for item in sublist]

x = 10
if 5 < x < 15:
    print("x is between 5 and 15")

name, age, city = "John", 25, "NYC"

x = 5
status = "Even" if x % 2 == 0 else "Odd"

squares = [x*x for x in range(10) if x % 2 == 0]

nums = [2, 4, 6]
print(all(n % 2 == 0 for n in nums))  # True
print(any(n > 5 for n in nums))       # True

s = "hello"
print(s[::-1])  # 'olleh'

arr = [1, 2, 3, 4]
arr[0], arr[-1] = arr[-1], arr[0]

dict1 = {'a': 1}
dict2 = {'b': 2}
merged = dict1 | dict2

names = ["Alice", "Bob", "Charlie"]
for index, name in enumerate(names, start=1):
    print(f"{index}: {name}")

squares = {x: x*x for x in range(5)}

names = ["a", "b", "c"]
scores = [85, 90, 95]
paired = dict(zip(names, scores))

from collections import Counter
nums = [1, 2, 2, 3, 3, 3]
freq = Counter(nums)

fib = lambda n: n if n <= 1 else fib(n-1) + fib(n-2)

from pathlib import Path
path = Path("myfolder") / "file.txt"

a, *middle, b = [1, 2, 3, 4, 5]

class MyClass:
    __slots__ = ['x', 'y']

if (n := len("Hello")) > 3:
    print(f"Length is {n}")

data = {"name": "Alice"}
print(data.get("age", 25))  # Returns 25 if 'age' not found