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Python Iterators and Generators Examples

🐍 Example 1: Create a generator that generates the squares of numbers up to some number N

def gensquares(N):
    for x in range(N):
        yield x**2

a = gensquares(10)

next(a)

Example 2: Create a generator that yields "n" random numbers between a low and high number (that are inputs)

import random



def rand_num(low,high,n):

    for x in range(n):
        yield random.randint(low,high)

y = rand_num(1,10,12)

next(y)

Example 3: Use the iter() function to convert the string below into an iterator

s = 'hello'

p = iter(s)

next(p)

Example 4: Example for Generator Comprehension


my_list = [1,2,3,4,5]


#The below line is a shortcut to create a generator
gencomp = (item for item in my_list if item > 3)

next(gencomp)

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