Modules

Modules

In Python, a module is a file containing Python definitions, statements, and functions that can be imported and used in other Python codes.

Modules are used to organize code into reusable and maintainable parts, making it easier to write large programs. They can also be used to extend the functionality of Python by providing access to additional libraries and packages.

To use a module in Python, it must first be imported into your code. This is done using the import statement followed by the name of the module. For example, to import the math module, you would use:

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import math

Once imported, you can access the functions and variables defined in the module using dot notation, like this:

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result = math.sqrt(16)

This code uses the sqrt() function from the math module to calculate the square root of 16 and store the result in the result variable. In addition to the built-in modules that come with Python, there are also many third-party modules available that can be installed and used in your code. These can be installed using tools like pip or conda, and then imported like any other module.

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