python dictionary

How to check if a dictionary is empty in Python

The dictionary is an unordered collection of items that stores the data in the form of key-value pairs. Dictionaries are very useful data structures when the data has a unique reference, especially in database management. When working with databases, you often need to determine if a dictionary is empty before inserting or updating records. An …

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How to count the number of keys in a dictionary in Python

Dictionaries are very useful data structures in Python that allow us to store and retrieve data using key-value pairs. This tutorial explores various methods to count the number of keys in a dictionary in Python. Before diving into this article, it is recommended to have a basic understanding of dictionaries, including their creation, syntax, and …

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