search
Search
Login
Unlock 100+ guides
menu
menu
web
search toc
close
Comments
Log in or sign up
Cancel
Post
account_circle
Profile
exit_to_app
Sign out
What does this mean?
Why is this true?
Give me some examples!
search
keyboard_voice
close
Searching Tips
Search for a recipe:
"Creating a table in MySQL"
Search for an API documentation: "@append"
Search for code: "!dataframe"
Apply a tag filter: "#python"
Useful Shortcuts
/ to open search panel
Esc to close search panel
to navigate between search results
d to clear all current filters
Enter to expand content preview
icon_star
Doc Search
icon_star
Code Search Beta
SORRY NOTHING FOUND!
mic
Start speaking...
Voice search is only supported in Safari and Chrome.
Navigate to

Python | map method

schedule Aug 12, 2023
Last updated
local_offer
Python
Tags
mode_heat
Master the mathematics behind data science with 100+ top-tier guides
Start your free 7-days trial now!

Python's map(~) method returns an iterator that applies the specified function to every item of an iterable.

Parameters

1. function | function

The function to apply to each element of the iterable.

2. iterable | iterable

The iterable whose elements we will apply the function to. Multiple iterables may be specified, however, the iterator will stop when the shortest of the provided iterables is exhausted.

Return value

An iterator that applies the provided function to every element in the iterable.

Examples

Basic usage

To capitalize every letter in a list:

letters = ['a', 'b', 'c']
capitalized_letters = map(str.upper, letters)
print(list(capitalized_letters))
['A', 'B', 'C']

Lambda function

To return the cube of every number:

nums = [1, 2, 3, 4, 5]
cube_nums = map(lambda x: x**3, nums)
print(list(cube_nums))
[1, 8, 27, 64, 125]
robocat
Published by Arthur Yanagisawa
Edited by 0 others
Did you find this page useful?
thumb_up
thumb_down
Comment
Citation
Ask a question or leave a feedback...
thumb_up
0
thumb_down
0
chat_bubble_outline
0
settings
Enjoy our search
Hit / to insta-search docs and recipes!