Bucles for y range()

Introducción

Bucle for básico

for fruit in ['apple', 'banana', 'cherry']:
    print(fruit)

range(stop)

for i in range(5):
    print(i)

range(start, stop)

for i in range(2, 7):
    print(i)

range(start, stop, step)

for i in range(0, 10, 2):
    print(i)

enumerate()

fruits = ['apple', 'banana']
for i, f in enumerate(fruits, start=1):
    print(i, f)

zip()

names = ['Alice', 'Bob']
ages = [30, 25]
for name, age in zip(names, ages):
    print(name, age)

Iterar sobre diccionarios

d = {'a': 1, 'b': 2}
for k, v in d.items():
    print(k, v)

Comprensión frente a bucle

squares = [x**2 for x in range(10)]
print(squares)

for con else

for i in range(5):
    if i == 9:
        break
else:
    print('no break')

Desempaquetado en bucles for

pairs = [(1,'a'),(2,'b')]
for num, ch in pairs:
    print(num, ch)

Comprobación rápida

Resumen

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