Modifying Values in a Python Dictionary

In Python, dictionaries are mutable data structures that allow you to store key-value pairs.
If you need to modify the value associated with a specific key, you can do so by referencing that key directly.

Example: Changing the value associated with the key "year":

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
thisdict["year"] = 2018

In the example above, the original value of "year" was 1964.
By assigning a new value using thisdict["year"] = 2018, the dictionary is updated accordingly.

Using update() to Modify Dictionary Entries

Python also provides the update() method, which is used to update a dictionary with key-value pairs from another dictionary or an iterable object.
This approach is particularly useful for updating multiple values simultaneously.

Example: Updating the dictionary using update():

thisdict = {
  "brand": "Ford",
  "model": "Mustang",
  "year": 1964
}
thisdict.update({"year": 2020})

The update() method takes a dictionary as an argument. In this example, the key "year" is updated from 1964 to 2020.

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