Add and Update values from a Dictionary in Python

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🖥️ Add and Update values from a Dictionary in Python

Dictionaries are mutable, which means you can add new items or change the value of an existing item using the assignment operator. If the key is already present, the value gets updated – else, a new “key: value” pair is added into the dictionary.

Adding an entry to an existing dictionary is simply a matter of assigning a new key and value pair. If the key is new, it is added to the dictionary with its value.

○ Add new item into a dictionary

my_dict = {
      'age': 27,
      'job': 'Youtuber',
      'name': 'Digital Academy'
}
     
my_dict['city'] = 'Paris'
# my_dict = {'age': 27, 'job': 'Youtuber', 'city': 'Paris', 'name': 'Digital Academy'}

○ Update item from a dictionary

If the key is already present in the dictionary, its value will be replaced by the new one. Thus, if you want to update an entry, you can just assign a new value to an existing key. Example: Change the value of the key ‘name’

my_dict = {
      'age': 27,
      'city'; 'Paris',
      'job': 'Youtuber',
      'name': 'Digital Academy'
}
     
my_dict['name'] = 'Jérémy'
# my_dict = {'age': 27, 'city': 'Paris', job': 'Youtuber', 'name': 'Jérémy'}

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