Python Dictionary get() Method

value = my_dict.get(key, default) returns the value for a key without raising KeyError when the key is missing. If no default is supplied, the missing-key result is None.

See the complete Dictionary Methods table for the other dictionary operations in this cluster.

my_dict={'a':'One','b':'Two','c':'Three'}
print(my_dict.get('b'))

Two

get() with key not present

my_dict={'a':'One','b':'Two','c':'Three'}
print(my_dict.get('d'))
print(my_dict)

None
{'a': 'One', 'b': 'Two', 'c': 'Three'}

get() with optional value for not present key

my_dict={'a':'One','b':'Two','c':'Three'}
print(my_dict.get('d','not found'))

not found

Example 1: Accessing Nested Dictionary Safely

my_dict = {'person': {'name': 'John', 'age': 30}}
print(my_dict.get('person', {}).get('age', 'Not found'))  # Output: 30

Example 2: A Function Call Used as the Default

The default expression is evaluated before get() is called. Use this form when that eager evaluation is acceptable.

def default_value():
    return "Default value"

my_dict = {'a': 1}
print(my_dict.get('b', default_value()))  # Output: "Default value"

Question using get()

my_str='Welcome to Python'
my_dict={}
for i in my_str:
  my_dict[i]=my_dict.get(i,0)+1
print(my_dict)

{'W': 1, 'e': 2, 'l': 1, 'c': 1, 'o': 3, 'm': 1, ' ': 2,
 't': 2, 'P': 1, 'y': 1, 'h': 1, 'n': 1}

Subhendu Mohapatra

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