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

2 votes195 views1 answer
Grid search python
Python
20 votes218 views5 answers
Save list to file python
Python
0 vote226 views1 answer
Module 'torch' has no attribute 'square'
Python
0 vote186 views1 answer
Python ignore unicodedecodeerror
Python
0 vote184 views1 answer
Python import module from bitbucket
Python
0 vote219 views1 answer
Django collectstatic with auto yes
Python Django
0 vote208 views1 answer
Circular import error
Python
0 vote163 views1 answer
Import re def check_time(text): pattern = ___ result = re.search(pattern, text) return result != None print(check_time("12:45pm")) # True print(check_time("9:59 AM")) # True print(check_time("6:60am")) # False print(chec
Python
0 vote248 views1 answer
System to extract data from csv file in python
Python
0 vote180 views1 answer
Create array with unknown size in python
Python