Funny python one-liners

one_liners.py

# First 20 Fibonacci numbers:
print(*map((fib := lambda n: n if n < 2 else fib(n-1) + fib(n-2)), range(1, 21)))


# FizzBuzz for 1..100:
print(*((i%3==0) * 'Fizz' + (i%5==0) * 'Buzz' or i for i in range(1,101)), sep='\n')


def add_one(a: list[int]) -> list[int]:
    return list(map(1.__add__, a)


def add_one_onenumber(n: int) -> int:
    return -~n

from typing import Literal
def even_or_odd(num: int) -> Literal['odd', 'even']:
    return 'eovdedn'[num % 2::2]

See also (my other gists):

• matrix operations
• itertools.starmap
• is_prime using regular expressions

damn, this is even better:

from typing import Literal
def even_or_odd(n: int) -> Literal["even", "odd"]:
    return 'even' if n == 0 else {'even': 'odd', 'odd': 'even'}[even_or_odd(n-1)]