Python generator

def count_to_ten_generator():
  for number in range(10):
    yield number
my_generator = count_to_ten_generator()
first_number = next(my_generator)
list_or_the_rest = list(my_generator)

Python generators

# Size of generators is a huge advantage compared to list
import sys

n= 80000

# List
a=[n**2 for n in range(n)]

# Generator
# Be aware of the syntax to create generators, lika a list comprehension but with round brakets
b=(n**2 for n in range(n))

print(f"List: {sys.getsizeof(a)} bits\nGenerator: {sys.getsizeof(b)} bits")

Python generator function

def gen_nums():
    n = 0
    while n < 4:
        yield n
        n += 1

Source: powerfulpython.com

Python generator

# A recursive generator that generates Tree leaves in in-order.
def inorder(t):
    if t:
        for x in inorder(t.left):
            yield x

        yield t.label

        for x in inorder(t.right):
            yield x

Source: docs.python.org

Similar codes

5 votes127 views2 answers
Python check if a file is empty
Python
1 vote124 views1 answer
Timedelta to float
Python
0 vote185 views1 answer
Flask wtforms multiple select
Python Flask
1 vote124 views1 answer
How to run the server in django
Python
7 votes122 views1 answer
Np in python
Python
2 votes125 views1 answer
Django models distinct
Python
0 vote169 views2 answers
Django pagination class based views
Python Django
0 vote133 views1 answer
Python convert number with a comma and decimal to a float
Python
1 vote161 views1 answer
How to custom page not found in django
Python Django
0 vote130 views1 answer
How to use iteration in python
Python