Dictionary in Python and Built-in-Method
Dictionaries are one of the most important data structures in Python, and they provide a flexible and efficient way to store and access data. Whether you’re working on a small project or a large one, understanding the various tricks and techniques for working with dictionaries is essential for writing efficient and effective Python code.
In this article, we’ll explore some of the most advanced tricks and techniques for working with dictionaries in Python. From using the built-in methods to working with dictionaries in combination with other data structures, you’ll gain a deeper understanding of how dictionaries work and how you can use them to solve real-world problems. Whether you’re an experienced Python developer or just getting started, this article is the perfect guide for taking your skills to the next level.
A dictionary can be created in Python using curly braces ‘{}’ or the built-in dict() function. Here's an example:
The following are Built-in-methods of the Dictionary
1.clear()
The method removes all the elements from a Dictionary.
2.copy()
The method is used, and a new dictionary is created which is filled with a copy of the references from the original dictionary.
3. fromkeys()
The method returns a dictionary with the specified keys and the specified value.
4.get()
The method returns the value of the item with the specified key.
5.items()
The method is used to return the list with all dictionary keys with values.
6.keys()
It returns a view object that displays a list of all the Keys in the dictionary.
7.pop()
The method removes the specified item from the Dictionary.
8.popitem()
The method removes the item that was last inserted into the Dictionary.
9. setdefault
The method returns the value of the item with the specified key.
10.update()
The method inserts the specified items into the dictionary.
11.values()
The method returns a view object that displays a list of all the values in the dictionary.
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