Accessing Dictionary Values — get() and Safe Access

"Getting data out of a dictionary seems simple — dict[key] and you're done. But what happens when the key doesn't exist? Your program crashes with a KeyError. In real applications, missing keys happen constantly — a user hasn't set a preference yet, a field is optional, data comes from an external source with unpredictable shape. The get() method is your safety net, and today you master every way to read from a dictionary safely."