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Linear Algebra
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# Python Dictionary | get method

schedule Mar 5, 2023
Last updated
local_offer
Python
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Python's `Dictionary.get(~)` method returns the value for the specified key in a dictionary.

# Parameters

1. `key` | `any type`

The key to be searched in the dictionary.

2. `value` | `any type` | `optional`

The value to be returned if the key is not found. Default is `None`.

# Return Value

If key exists in dictionary: the value for the key.

If key does not exist in dictionary and no value is specified in input: None.

If key does not exist in dictionary and value is specified in input: specified value.

# Examples

## Basic usage

When the key exists in dictionary:

``` cars = {'Toyota': 'Green', 'Nissan':'Yellow', 'Honda':'Blue'}cars.get('Nissan') 'Yellow' ```

When the key does not exist in dictionary and no value is specified in input:

``` cars = {'Toyota': 'Green', 'Nissan':'Yellow', 'Honda':'Blue'}print(cars.get('Renault')) None ```

When the key does not exist in dictionary and value is specified in input:

``` cars = {'Toyota': 'Green', 'Nissan':'Yellow', 'Honda':'Blue'}cars.get('Renault','Other') 'Other' ```

## Difference between Dictionary.get(~) method and dict[key]

The `Dictionary.get()` method returns a default value if the key is missing.

``` cars = {'Toyota': 'Green', 'Nissan':'Yellow', 'Honda':'Blue'}print(cars.get('Renault')) None ```

If key is missing when using `dict[key]`, `KeyError` exception is raised.

``` cars = {'Toyota': 'Green', 'Nissan':'Yellow', 'Honda':'Blue'}cars['Renault'] KeyError: 'Renault' ```
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