Handling Missing Keys With the Python defaultdict Type

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:

• 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

What’s Included:

• 7 Lessons
• Video Subtitles and Full Transcripts
• 2 Downloadable Resources
• Accompanying Text-Based Tutorial
• Q&A With Python Experts: Ask a Question
• Certificate of Completion

Downloadable Resources:

• Course Slides (.pdf)
• Sample Code (.zip)