Skip to main content

🚀 In our NEW AI Bootcamp you'll build a working app in 28 days, no experience required. Free to all subscription levels.

Join the Treehouse affiliate program and earn 25% recurring commission! 🤑

✨ Earn college credits in Cybersecurity, JS, HTML, CSS and Python

  • Treehouse Logo
    • For Individuals
    • For Businesses
    • For Schools
    • For Libraries
    • For Military
    • All Courses
    • Tracks
    • AI Bootcamp
    • College Credit
    • Techdegree Bootcamps
    • Front End Development
    • Full Stack JavaScript
    • Code Adventures
    • Discord
    • Forum
    • Success Stories
    • Treehouse Links
    • 100 Days of Code
    • Explore
    • Career Toolbox
    • Free Treehouse Near Me
    • Affiliates
    • Blog
    • Support
    • About
    • Learn
    • Beginner's Guide to Coding
    • Data Analysis with SQL & Python
    • Front-End Web Development
    • Python Programming Basics
    • Techdegree Bootcamp Overview
    • UX Design Fundamentals
    • AI Tools for Beginners
  • For Individuals For Businesses For Schools For Libraries For Military
  • All Courses Tracks AI Bootcamp College Credit
  • Techdegree Bootcamps Front End Web Development Full Stack JavaScript
  • Code Adventures Discord Forum Success Stories Treehouse Links 100 Days of Code
  • Explore Career Toolbox Free Treehouse Near Me Affiliates Blog Support About
    Learn Beginner's Guide to Coding Data Analysis with SQL & Python Front-End Web Development Python Programming Basics Techdegree Bootcamp Overview UX Design Fundamentals AI Tools for Beginners
  • Sign In
  • Free Trial
Instagram Twitter Facebook YouTube LinkedIn
Loading banner... Start your free trial at Treehouse
    • Newest
      • Newest
      • Active
      • Unanswered
      • Featured
    • All Topics
      • All Topics
      • • General Discussion
      • • AI
      • • APIs
      • • Coding for Kids
      • • College Credit
      • • Computer Science
      • • CSS
      • • Data Analysis
      • • Databases
      • • Design
      • • Development Tools
      • • Digital Literacy
      • • Game Development
      • • Go Language
      • • HTML
      • • Java
      • • JavaScript
      • • Learning Resources
      • • Machine Learning
      • • No-Code
      • • PHP
      • • Professional Growth
      • • Python
      • • Quality Assurance
      • • React
      • • Ruby
      • • Security
      • • Swift
      • • Vibe Coding
  • Andy Hughes
    Andy Hughes
    8,479 Points

    Chaining functions - i’m lost

    Posted January 4, 2022 1:06pm by Andy Hughes
    Andy Hughes
    8,479 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Thomas Ma
    Thomas Ma
    15,199 Points

    Now create a function named date_string that takes a datetime and returns a string like "May 20" using strftime. The for

    Posted November 23, 2020 6:50pm by Thomas Ma
    Thomas Ma
    15,199 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Mokanye Tumelo Tricia
    Mokanye Tumelo Tricia
    9,981 Points

    please help

    Posted November 15, 2019 11:14am by Mokanye Tumelo Tricia
    Mokanye Tumelo Tricia
    9,981 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    3 Answers

  • Bakang Elliot Simane
    Bakang Elliot Simane
    5,119 Points

    i am stuck here

    Posted November 2, 2019 4:51pm by Bakang Elliot Simane
    Bakang Elliot Simane
    5,119 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Guide Alison Ndapasowa
    Guide Alison Ndapasowa
    11,218 Points

    Create a function named is_over_13 that takes a datetime and returns whether or not the difference between that datetime

    Posted November 2, 2019 10:54am by Guide Alison Ndapasowa
    Guide Alison Ndapasowa
    11,218 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Malcolm Aldrin Masumba
    Malcolm Aldrin Masumba
    3,689 Points

    where m i going wrong with this

    Posted October 25, 2019 9:33am by Malcolm Aldrin Masumba
    Malcolm Aldrin Masumba
    3,689 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Farai Ted Mandoreba
    Farai Ted Mandoreba
    21,518 Points

    a bit confused with this challenge, i need help

    Posted October 20, 2019 3:19pm by Farai Ted Mandoreba
    Farai Ted Mandoreba
    21,518 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    3 Answers

  • Dat Ngo
    Dat Ngo
    1,309 Points

    Challenge Task 3

    Posted August 8, 2019 2:19am by Dat Ngo
    Dat Ngo
    1,309 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    2 Answers

  • Mike Walters
    Mike Walters
    3,667 Points

    Now create a function named date_string that takes a datetime and returns a string like "May 20" using strftime. The for

    Posted March 26, 2019 5:11pm by Mike Walters
    Mike Walters
    3,667 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Britt Danzer
    Britt Danzer
    19,539 Points

    Keep getting error message didn't get correct items in birth_dates

    Posted February 1, 2019 10:26pm by Britt Danzer
    Britt Danzer
    19,539 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Dara Roberts
    PLUS
    Dara Roberts
    Courses Plus Student 7,770 Points

    Not sure what is wrong with birth_dates variable.

    Posted December 11, 2018 10:23pm by Dara Roberts
    Dara Roberts
    Courses Plus Student 7,770 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Admin User
    Admin User
    8,499 Points

    Just a mind gap here. Can someone please help me figure this out?

    Posted September 24, 2018 2:43pm by Admin User
    Admin User
    8,499 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    2 Answers

  • Cross Ender
    Cross Ender
    9,567 Points

    I also can't do this

    Posted August 29, 2018 2:57pm by Cross Ender
    Cross Ender
    9,567 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Jack Cummins
    Jack Cummins
    17,417 Points

    Please help me.

    Posted June 28, 2018 9:33pm by Jack Cummins
    Jack Cummins
    17,417 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Tatenda Marshall Manuel
    Tatenda Marshall Manuel
    8,055 Points

    Now create a function named date_string that takes a datetime and returns a string like "May 20" using strftime. The for

    Posted May 31, 2018 8:40am by Tatenda Marshall Manuel
    Tatenda Marshall Manuel
    8,055 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Ignatius Matongo
    Ignatius Matongo
    9,418 Points

    please help on this i cant pass this

    Posted May 29, 2018 12:37pm by Ignatius Matongo
    Ignatius Matongo
    9,418 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Israel Mabhoo
    Israel Mabhoo
    16,356 Points

    Now create a function named date_string that takes a datetime and returns a string like "May 20" using strftime. The for

    Posted May 28, 2018 6:31pm by Israel Mabhoo
    Israel Mabhoo
    16,356 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Dmitry Karamin
    Dmitry Karamin
    10,099 Points

    What's the problem?

    Posted September 4, 2016 7:47pm by Dmitry Karamin
    Dmitry Karamin
    10,099 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    0 Answers

  • neoty888
    neoty888
    23,973 Points

    Functional Python, Challenge Task 3

    Posted June 17, 2016 10:35pm by neoty888
    neoty888
    23,973 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Diego Salas Polar
    Diego Salas Polar
    21,431 Points

    I can't figure this one out by myself. I need help, and I keep getting Bummer! Try again!

    Posted June 9, 2016 8:17pm by Diego Salas Polar
    Diego Salas Polar
    21,431 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Neil Gordon
    Neil Gordon
    8,823 Points

    Question on my use of the date time function to return a format "May 20th" in Python

    Posted June 1, 2016 5:14pm by Neil Gordon
    Neil Gordon
    8,823 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    2 Answers

  • Kir Ivanov
    PLUS
    Kir Ivanov
    Courses Plus Student 52 Points

    Whats wrong, please suggest

    Posted March 11, 2016 11:43am by Kir Ivanov
    Kir Ivanov
    Courses Plus Student 52 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Stefan Vaziri
    Stefan Vaziri
    17,453 Points

    Help using filter() and map()

    Posted February 24, 2016 6:17pm by Stefan Vaziri
    Stefan Vaziri
    17,453 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Jose Coto
    Jose Coto
    11,466 Points

    Create a function that calculates the difference between dates and checks if it is bigger than a number

    Posted October 5, 2015 11:15pm by Jose Coto
    Jose Coto
    11,466 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Adam Raitano
    Adam Raitano
    5,387 Points

    Create a function named is_over_13 with datetime woes.

    Posted September 18, 2015 7:57pm by Adam Raitano
    Adam Raitano
    5,387 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Bryan Manhollan
    PLUS
    Bryan Manhollan
    Courses Plus Student 10,096 Points

    Not sure what answer this is looking for.

    Posted September 17, 2015 8:51pm by Bryan Manhollan
    Bryan Manhollan
    Courses Plus Student 10,096 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

  • Adam Raitano
    Adam Raitano
    5,387 Points

    functional programming 'datetime' confusion

    Posted September 15, 2015 11:45pm by Adam Raitano
    Adam Raitano
    5,387 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    5 Answers

  • William Keil
    William Keil
    4,933 Points

    How to calculate if someone is over 13 in days?

    Posted September 14, 2015 4:50am by William Keil
    William Keil
    4,933 Points
    • Python
    • Functional Python
    • Functional Workhorses
    • Map and Filter

    1 Answer

Posting to the forum is only allowed for members with active accounts.
Please sign in or sign up to post.

Techdegree

  • Front End Web Development
  • Full Stack JavaScript
SEE ALL

Tracks

  • Learn to Code for Beginners
  • Beginning Python
  • Beginning SQL
  • Beginning Java
SEE ALL

Courses

  • JavaScript Basics
  • Intro to HTML & CSS
  • Python Basics
  • CSS Layout
SEE ALL

About Us

  • About
  • Blog
  • Community
  • Stories
  • Contact
  • Gift Card

Explore

  • Plans
  • Affiliates
  • Perks
  • Shop
  • Free Treehouse Near Me
  • Treehouse for Libraries
  • Treehouse for Businesses

Treehouse is an online technology education platform founded in 2011. Treehouse offers more than 700 self-paced, video-based courses in web development, programming, data analysis, design, and AI, plus two project-based bootcamp programs in Front End Web Development and Full Stack JavaScript. Individual Treehouse plans start at $25 per month and include a 7-day free trial. Treehouse serves individual learners, businesses, schools, and public libraries. Cardholders at participating U.S. public libraries can use Treehouse for free. Select Treehouse courses, offered with University Pathways International, are recommended for college credit by ACE and NCCRS. Treehouse learners earn digital certificates for completed Tracks.

Terms & Conditions · Privacy · © 2026 Treehouse Island, Inc.
  • Twitter
  • YouTube
  • Facebook
  • LinkedIn
  • Instagram
  • Discord