Erweiterte Python-Funktionen

def get_lengths(words):
    return map(len, words)

words = ['cat', 'window', 'defenestrate']
lengths = get_lengths(words)
print(lengths)  # [3, 6, 12]

def multiply(x, y):
    return x * y

a = [1, 2, 3]
b = [10, 20, 30]
result = map(multiply, a, b)
print(result)  # [10, 40, 90]

from functools import reduce

def multiply(x, y):
    return x * y

a = [1, 2, 3, 4]
result = reduce(multiply, a)
print(result)  # 24

from functools import reduce

def add(x, y):
    return x + y

a = [1, 2, 3, 4]
result = reduce(add, a, 0)
print(result)  # 10

def is_odd(x):
    return x % 2 == 1

a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
odd_numbers = filter(is_odd, a)
print(odd_numbers)  # [1, 3, 5, 7, 9]

a = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
odd_numbers = filter(lambda x: x % 2 == 1, a)
print(odd_numbers)  # [1, 3, 5, 7, 9]

a = [1, 2, 3]
b = ['a', 'b', 'c']
zipped = zip(a, b)
print(zipped)  # [(1, 'a'), (2, 'b'), (3, 'c')]

a = [1, 2, 3]
b = ['a', 'b', 'c']
c = [True, False, True]
zipped = zip(a, b, c)
print(zipped)  # [(1, 'a', True), (2, 'b', False), (3, 'c', True)]

def print_tuples(a, b, c):
    print(f'a: {a}, b: {b}, c: {c}')

a = [1, 2, 3]
b = ['a', 'b', 'c']
c = [True, False, True]
zipped = zip(a, b, c)

# Unpack the tuples in a function call
for t in zipped:
    print_tuples(*t)

# Unpack the tuples in a list comprehension
unzipped = [print_tuples(*t) for t in zipped]

a = ['a', 'b', 'c']
for i, element in enumerate(a):
    print(f'{i}: {element}')

# Output:
# 0: a
# 1: b
# 2: c

a = ['a', 'b', 'c']
for i, element in enumerate(a, 1):
    print(f'{i}: {element}')

# Output:
# 1: a
# 2: b
# 3: c