Handling Missing Keys With the Python defaultdict Type

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Christian Mondorf

42:59

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1 intro.mp4

03:02

2 handling missing keys.mp4

03:31

3 understanding defaultdict.mp4

05:10

4 using defaultdict.mp4

09:20

5 diving deeper Fix.mp4

10:34

6 passing arguments.mp4

07:27

7 summary.mp4

03:55

Defaultdict Slides.pdf

defaultdict code.py.zip

Description

The Python defaultdict type behaves almost exactly like a regular Python dictionary, but if you try to access or modify a missing key, then defaultdict will automatically create the key and generate a default value for it. This makes defaultdict a valuable option for handling missing keys in dictionaries.

In this course, you’ll learn:

What You'll Learn?

How to use the Python defaultdict type for handling missing keys in a dictionary
When and why to use a Python defaultdict rather than a regular dict
How to use a defaultdict for grouping, counting, and accumulating operations