How to Iterate Through a Dictionary in Python

Python Dictionary Iteration: Advanced Tips & Tricks

Liam Pulsifer
Liam Pulsifer 9 Lessons 47m intermediate python
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Dictionaries are one of the most important and useful data structures in Python. They can help you solve a wide variety of programming problems. This course will take you on a deep dive into how to iterate through a dictionary in Python.

By the end of this course, you’ll know:

  • What dictionaries are, as well as some of their main features and implementation details
  • How to iterate through a dictionary in Python by using the basic tools the language offers
  • What kind of real-world tasks you can perform by iterating through a dictionary in Python
  • How to use some more advanced techniques and strategies to iterate through a dictionary in Python

For more information on dictionaries, you can check out the following resources:

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Python Dictionary Iteration: Advanced Tips & Tricks

9 Lessons 47m

  1. 1. How to Iterate Through a Dictionary in Python: Overview05:20
  2. 2. How to Iterate Through Dictionaries Using Basic Python Tools06:01
  3. 3. How to Modify Values in a Dictionary While Iterating Through It07:15
  4. 4. Real-World Tasks With Dictionary Iteration05:07
  5. 5. Advanced Techniques and Strategies08:15
  6. 6. How to Use .popitem()04:04
  7. 7. How to Use ChainMap03:26
  8. 8. How to Use itertools With Dictionaries04:27
  9. 9. Dictionary Unpacking03:51
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About Liam Pulsifer

Liam is a software engineer and avid Pythonista. When he's not writing code to automate all of his daily tasks, you can often find him running, playing basketball and tennis, reading, or eating good food.

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Each tutorial at Real Python is created by a team of developers so that it meets our high quality standards. The team members who worked on this tutorial are:

Dan

Joanna

Sadie

Tappan

Leodanis

Geir Arne

Jim

Aldren

Kate

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Participant Comments

Avatar image for mikesult

mikesult on May 6, 2020

Thanks Liam for a great tutorial on working with dictionaries. I learned a lot of new things especially using ChainMap, the itertools and dict unpacking.

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datateam on Jan. 13, 2020

I am a data engineer so work with dictionaries a fair bit. Although I was familiar with a lot of the concepts, I still picked up a number of new things, like ChainMap! And a brilliant use case for popitem! Loved the presenting skills and the material was very valuable. Will look to see if I can apply some of the learnings to my job and in fun challenges :) Great work Liam!

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stephenm on Dec. 30, 2019

Very clear presentation of dictionary features and techniques. Many thanks.

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sion on Dec. 29, 2019

Great presentation. Useful stuff that was new to me, also pointers to other areas to look into. I liked you delivering it ‘warts and all’. It is always helpful to see mistakes and their redemption. Many thanks.

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muzixaba on Dec. 29, 2019

Fantastic tutorial. I learned a lot, especially on using itertools with dictionaries.

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vedavyas on Dec. 26, 2019

This course helped me to understand the itertools and it how to use them. Last four sections helped me alot.

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