How can you remove a key-value pair from a dictionary?
Understand the Problem
The question is asking for the correct method to remove a key-value pair from a dictionary in programming. It presents multiple choices related to different methods that can possibly be used, and we need to identify which one is correct.
Answer
Use `del` or `pop()` to remove a key-value pair from a dictionary.
To remove a key-value pair from a dictionary, use the del statement, which can raise a KeyError if the key doesn't exist, or the pop() method, which allows specifying a default value if the key is not found.
Answer for screen readers
To remove a key-value pair from a dictionary, use the del statement, which can raise a KeyError if the key doesn't exist, or the pop() method, which allows specifying a default value if the key is not found.
More Information
The pop() method is more flexible than del in handling missing keys, as it doesn't throw an error if you provide a default value.
Tips
Forgetting to provide a default value with pop() can lead to errors if the key is absent. Always check if a key exists or use a default to avoid KeyError.
Sources
- How can I remove a key from a Python dictionary? - Stack Overflow - stackoverflow.com
- Python Remove Key from Dictionary – How to Delete Keys from a Dict - freecodecamp.org
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