How to Get Dictionary Values or Return a Default Value When a Key is Missing?

Get Dictionary Value or Return Default Value on Key Absence

Retrieving dictionary values by key is straightforward in Python, but attempting to access non-existent keys raises a KeyError exception. For a more explicit and user-friendly approach, we can utilize the dict.get() method.

dict.get() allows specifying a fallback value to return in case the sought key doesn't exist. If the key is present, the associated value is returned. Otherwise, the provided default value is returned instead of raising an exception.

The syntax is:

value = d.get(key)

By default, value will be None if the key doesn't exist. To specify a custom default value, use the following syntax:

value = d.get(key, "empty")

In this example, "empty" would be returned if the key is absent in the dictionary d.

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