Python has a set of built-in methods that you can use on dictionaries.
This is what I will discuss in this article.
| Method | Description |
| clear() | Removes all the elements from the dictionary |
| copy() | Returns a copy of the dictionary |
| fromkeys() | Returns a dictionary with the specified keys and value |
| get() | Returns the value of the specified key |
| items() | Returns a list containing a tuple for each key value pair |
| keys() | Returns a list containing the dictionary's keys |
| pop() | Removes the element with the specified key |
| popitem() | Removes the last inserted key-value pair |
| setdefault() | Returns the value of the specified key. If the key does not exist: insert the key, with the specified value |
| update() | Updates the dictionary with the specified key-value pairs |
| values() | Returns a list of all the values in the dictionary |
Method get()
Example: get the value of the "age" item:
>>> person = {
"name": "Mike",
"age": 27,
"position": "Developer"
}
>>> person.get("age")
27If the dictionary doesn't have the key the method returns None:
>>> print(person.get("address"))
None
>>> person.get("address") is None
TrueThe method get() receives the second parameter which will be returned if the given key isn't found in the dictionary:
>>> person.get("address", "Brooklyn, NY 11216")
Brooklyn, NY 11216
