When working with Python dictionaries, sometimes your code has to deal with keys that may not be there; depending on the situation, this is trickier than it looks. In fact, your code may have a major bug in it right now! Learn the three different techniques for handling missing dict keys, their different strengths, and avoidable gotchas.

• Learn 3 coding methods to handle missing keys in your dictionary data structure
• Understand which method to use - when, and why, and the pros and cons of each method
• Learn how to practically apply each method and what problems each one solves
• Fully understand the nuances of the often maligned dict.get() method

Aaron Maxwell is author of the book "Powerful Python: The Most Impactful Patterns, Features, and Development Strategies Modern Python Provides." As a software engineer, he has worked in devops, test automation, and machine learning; and now divides his time between coding, writing, and teaching.

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