Map python 3

Python map function

# The map function applies a function to every item in a list,
# and returns a new list.

numbers =  [0, -1, 2, 3, -4]

def square_func(n):
    return n*n
 
new_numbers = list(map(square_func, numbers))
#new_numbers: [0, 1, 4, 9, 16]

Map in python

# Python program to demonstrate working 
# of map. 
  
# Return double of n 
def addition(n): 
    return n + n 
  
# We double all numbers using map() 
numbers = (1, 2, 3, 4) 
result = map(addition, numbers) 
print(list(result))
# result [2, 4, 6, 8]

Map python 3

from multiprocessing import Pool

def test( v ):
    print(v)
    return v

if __name__ == '__main__':
    with Pool(2) as p:
        print(p.map(test, range(5)))

Similar codes

0 vote358 views1 answer
Pysimplegui get value from textbox
Python
1 vote376 views1 answer
Bytes-like object
Python
0 vote352 views1 answer
Access data frame element by loc
Python
0 vote352 views1 answer
Convert string ranges list python
Python
1 vote317 views2 answers
Download pdf from url python
Python
0 vote369 views1 answer
Numpy get length of list
Python
1 vote331 views1 answer
Find all element in list python
Python
31 votes351 views5 answers
Python loop through files in directory
Python
0 vote374 views1 answer
Telethon get all channels
Python
2 votes353 views1 answer
How to check if an element is visible on the web page in selenium python
Python