modules in python javatpoint
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title: a comprehensive guide to python modules - javatpoint tutorial
introduction:
python, a versatile and powerful programming language, facilitates code organization and reusability through the use of modules. modules in python are collections of python code bundled together, allowing for better organization and maintainability of code. in this tutorial, we will explore the concept of modules in python, understand their significance, and walk through practical examples.
table of contents:
1. what are modules?
in python, a module is a file containing python definitions and statements. the file name becomes the module name, and it has a .py extension. modules help organize code logically, making it more readable and maintainable.
2. creating a module
let's start by creating a simple module. create a file named mymodule.py with the following content:
this module (mymodule.py) contains two functions: greet and square.
3. importing modules
to use the functions defined in a module, you need to import it. create another python script (e.g., main.py) and import the mymodule:
run main.py, and you should see the output:
4. exploring module attributes
modules can have attributes, including functions, variables, and classes. you can access these attributes using the dot notation. update mymodule.py to include a variable:
now, modify main.py to access the new variable:
5. renaming a module
you can use the as keyword to rename a module during import. update main.py:
6. module search path
python searches for modules in a specific order. you can view the module search path using the sys.path list. update main.py:
7. using the "from" keyword
the from keyword allows you to import specific attributes directly. update main.py:
8. creating packages
packages are a way of organizing related modules into a single directory hierarchy. create a directory named mypackage and move mymodule.py into it. update main.py:
9. conclusion
in this tutorial, we explored the fundamentals of python modu ...
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