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

17 votes238 views3 answers
ImportError: No module named _tkinter, please install the python-tk package
Python
2 votes196 views1 answer
Flask for loops
Python
2 votes162 views3 answers
How to reboot a python script
Python
0 vote167 views1 answer
Tensorboard dev upload in background colab
Python
63 votes162 views3 answers
How to calculate sum of a list in python
Python
0 vote176 views1 answer
Can't open file 'sherlock.py' errno 2 no such file or directory
Python
0 vote178 views1 answer
Python detect color on screen
Python
0 vote188 views1 answer
Temp variable python
Python
2 votes163 views2 answers
Python sort based on multiple keys
Python
0 vote157 views1 answer
Dateien mit modul requests herunterladen python
Python