Q17: What are Python modules, and how do they contribute to code organization and reusability? Provide an example to illustrate their usage.
A17:
Python Modules:
- In Python, a module is a file containing Python definitions and statements. It serves as a way to organize code into reusable units.
- Modules allow you to split your code into logical, manageable parts and provide a mechanism for sharing code between different programs.
Contribution to Code Organization and Reusability:
- Modules contribute to code organization by grouping related functionality together and promoting a modular and maintainable code structure.
- They enhance code reusability by allowing functions, classes, and variables defined in one module to be imported and used in another module or script.
# Example of a Python module named 'my_module'
# File: my_module.py
def greet(name):
return f"Hello, {name}!"
def square(x):
return x ** 2
In another script or module, you can use the functions defined in
my_module:# Using the 'my_module' module
import my_module
print(my_module.greet("Alice"))
print(my_module.square(5))
This separation of concerns into modules helps in maintaining a clean and organized codebase.
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