Modules in Python are files containing Python code. This code can define functions, classes, and variables. A module is a way to structure your Python code and make it more manageable by dividing it into smaller, self-contained units.<\/p>\n\n\n\n
To create a module, you simply write your Python code in a file with a <\/p>\n\n\n\n To use a module, you need to import it into your Python script using the <\/p>\n\n\n\n You can import specific functions, classes, or variables from a module using the <\/p>\n\n\n\n You can assign an alias to a module or an item within a module to make it easier to reference.<\/p>\n\n\n\n <\/p>\n\n\n\n The <\/p>\n\n\n\n <\/p>\n\n\n\n Step 1:<\/strong> Create a module named Step 2:<\/strong> Create a script named <\/p>\n\n\n\n.py<\/code> extension.<\/p>\n\n\n\n\n
greet(name)<\/code>: This function takes a name and returns a greeting string.<\/li>\n\n\n\nadd(a, b)<\/code>: This function takes two numbers and returns their sum.<\/li>\n\n\n\npi<\/code>: This is a constant representing the value of \u03c0.<\/li>\n<\/ul>\n\n\n\n# mymodule.py\n\ndef greet(name):\n return f"Hello, {name}!"\n\ndef add(a, b):\n return a + b\n\npi = 3.14159<\/pre><\/div>\n\n\n\nUsing a Module<\/h2>\n\n\n\n
import<\/code> statement.<\/p>\n\n\n\n\n
import mymodule<\/code>: This statement imports the module mymodule<\/code>.<\/li>\n\n\n\nmymodule.greet(\"Alice\")<\/code>: Calls the greet<\/code> function from mymodule<\/code> with “Alice” as an argument.<\/li>\n\n\n\nmymodule.add(5, 3)<\/code>: Calls the add<\/code> function from mymodule<\/code> with 5 and 3 as arguments.<\/li>\n\n\n\nmymodule.pi<\/code>: Accesses the pi<\/code> variable from mymodule<\/code>.<\/li>\n<\/ul>\n\n\n\n# main.py\n\nimport mymodule\n\n# Using functions from the module\nprint(mymodule.greet("Alice")) # Output: Hello, Alice!\nprint(mymodule.add(5, 3)) # Output: 8\n\n# Accessing variables from the module\nprint(mymodule.pi) # Output: 3.14159<\/pre><\/div>\n\n\n\nImporting Specific Items<\/h2>\n\n\n\n
from ... import ...<\/code> statement.<\/p>\n\n\n\n\n
from mymodule import greet, pi<\/code>: Imports only the greet<\/code> function and pi<\/code> variable from mymodule<\/code>.<\/li>\n\n\n\ngreet(\"Bob\")<\/code>: Calls the greet<\/code> function with “Bob” as an argument.<\/li>\n\n\n\npi<\/code>: Accesses the pi<\/code> variable directly.<\/li>\n<\/ul>\n\n\n\n# main.py\n\nfrom mymodule import greet, pi\n\n# Using the imported function and variable\nprint(greet("Bob")) # Output: Hello, Bob!\nprint(pi) # Output: 3.14159<\/pre><\/div>\n\n\n\nUsing Aliases<\/h2>\n\n\n\n
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import mymodule as mm<\/code>: Imports mymodule<\/code> and gives it the alias mm<\/code>.<\/li>\n\n\n\nfrom mymodule import add as sum_up<\/code>: Imports the add<\/code> function from mymodule<\/code> and gives it the alias sum_up<\/code>.<\/li>\n\n\n\nmm.greet(\"Carol\")<\/code>: Calls the greet<\/code> function from mymodule<\/code> using the alias mm<\/code>.<\/li>\n\n\n\nsum_up(10, 5)<\/code>: Calls the add<\/code> function using the alias sum_up<\/code>.<\/li>\n<\/ul>\n\n\n\n# main.py\n\nimport mymodule as mm\nfrom mymodule import add as sum_up\n\n# Using the module and function with aliases\nprint(mm.greet("Carol")) # Output: Hello, Carol!\nprint(sum_up(10, 5)) # Output: 15<\/pre><\/div>\n\n\n\nExploring the
sys<\/code> Module<\/h2>\n\n\n\nsys<\/code> module provides access to some variables and functions used or maintained by the Python interpreter.<\/p>\n\n\n\n\n
import sys<\/code>: Imports the built-in sys<\/code> module.<\/li>\n\n\n\nsys.version<\/code>: Retrieves the Python version.<\/li>\n\n\n\nsys.platform<\/code>: Retrieves the platform on which Python is running.<\/li>\n<\/ul>\n\n\n\nimport sys\n\nprint("Python version:", sys.version)\nprint("Platform:", sys.platform)<\/pre><\/div>\n\n\n\nPython Modules Example Code<\/h2>\n\n\n\n
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mymodule.py<\/code>.<\/p>\n\n\n\n# mymodule.py\n\ndef greet(name):\n return f"Hello, {name}!"\n\ndef add(a, b):\n return a + b\n\npi = 3.14159<\/pre><\/div>\n\n\n\nmain.py<\/code> that imports and uses the module.<\/p>\n\n\n\n# main.py\n\nimport mymodule\n\n# Using functions from the module\nprint(mymodule.greet("Alice")) # Output: Hello, Alice!\nprint(mymodule.add(5, 3)) # Output: 8\n\n# Accessing variables from the module\nprint(mymodule.pi) # Output: 3.14159<\/pre><\/div>\n\n\n\nPython Labs<\/strong><\/h2>\n\n\n\n