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

1 vote238 views1 answer
How to create a fixed size empty array in python
Python
-1 vote230 views1 answer
Pyaudio mic stream
Python
0 vote228 views1 answer
Spooling in os
Python
3 votes237 views2 answers
Numpy stdev
Python
3 votes235 views1 answer
Np.array average row
Python
57 votes229 views6 answers
Python get list of files in directory
Python
16 votes243 views6 answers
Python how to print
Python
1 vote221 views1 answer
Create np nan array
Python
9 votes244 views6 answers
Get last item in array python
Python
0 vote254 views1 answer
Check django channels with redis setup
Python Django