what does map function do in python code example

Example 1: mapping in python string

# mapping function
def uppercase(u):
    return str(u.upper())

map_iterator = map(uppercase,['a','b','c'])
mylist = list(map_iterator)
print(mylist)

Example 2: map in python 3

map(function, iterable, ...)

Example 3: python dictionary map function

dictionary = {k: f(v) for k, v in dictionary.items()}

Example 4: python map

map(function_to_apply, list_of_inputs)

Example 5: 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]

Example 6: map in python

map(function_to_apply, list_of_inputs)