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How do you create and access elements in a dictionary?

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astering Python Training with UrbanPro - Your Gateway to Excellence Introduction: As an experienced Python Training tutor registered on UrbanPro.com, I understand the significance of mastering the fundamentals of Python programming. Creating and accessing elements in a dictionary is a fundamental skill...
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astering Python Training with UrbanPro - Your Gateway to Excellence Introduction: As an experienced Python Training tutor registered on UrbanPro.com, I understand the significance of mastering the fundamentals of Python programming. Creating and accessing elements in a dictionary is a fundamental skill that lays the foundation for efficient Python programming. Creating a Dictionary in Python: Definition: A dictionary in Python is a collection of key-value pairs. It is created using curly braces {}. Example: python my_dict = {'name': 'John', 'age': 25, 'city': 'New York'} Accessing Elements in a Dictionary: By Key: Use the key within square brackets to access the corresponding value. python name = my_dict['name'] Using the get() Method: Provides a default value if the key is not present. python age = my_dict.get('age', 0) # Returns 25 salary = my_dict.get('salary', 0) # Returns 0 Updating and Adding Elements: Updating Values: Simply reassign a new value to an existing key. python my_dict['age'] = 26 Adding New Key-Value Pairs: Assign a value to a new key. python my_dict['occupation'] = 'Software Engineer' Removing Elements from a Dictionary: Using pop(): Removes the item with the specified key and returns its value. python removed_age = my_dict.pop('age') Using popitem(): Removes the last inserted key-value pair. python last_item = my_dict.popitem() Conclusion: Mastering dictionary operations is crucial for Python learners, and UrbanPro.com provides the best online coaching for Python Training. As a registered tutor, I am committed to guiding students through these concepts, ensuring a solid foundation in Python programming. Join me on UrbanPro.com to embark on a journey of excellence in Python Training. read less
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