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 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)} bitsnGenerator: {sys.getsizeof(b)} bits")python yield from
def readData():
with open("data.csv") as f:
yield from f
# if you returned f, it would throw I/O operation on closed file!
# if you yield from it, it works ok
reader = readData()
for i in reader:
print(i)Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
