Python Dictionary setdefault() Method
Example
Get the value of the "model" item:
car = {
"brand": "Ford",
"model": "Mustang",
"year": 1964
}
x = car.setdefault("model", "Bronco")
print(x)
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Definition and Usage
The setdefault() method returns the value of the
item with the specified key.
If the key does not exist, insert it as a new key, with the specified value, see
example below, the return value will be the specified value.
Syntax
dictionary.setdefault(keyname, value)
Parameter Values
| Parameter |
Description |
| keyname |
Required. The keyname of the item you want to return the value from |
| value |
Optional.
If the key exist, this parameter has no effect.
If the
key does not exist, this value becomes the key's value
Default value None |
More Examples
Example
Get the value of the "color" item, if the "color" item does not exist,
insert "color" with the value "white":
car = {
"brand": "Ford",
"model": "Mustang",
"year": 1964
}
x = car.setdefault("color",
"white")
print(x)
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