python modules create and import in python -

python modules create and import in python

Hello Students welcome to our new blog. In this blog i am going to tell you about python module. Here we will  Create python modules and import in python. So must read the full blog. In the middle of the article you will get the video link of live class.

python modules

Introduction

Every program that we create Python is treated as a module. It logically organizes Python functions in a single program file Grouping related code into a module makes the code easier to understand and use. In oth words a module can be defined as – “A module is a group of functions, classes and variable saved as a python program file (.py)”.

In the Python programming that we have learnt so far we have used two readymade Python modules (Math and Random) and the function defines in them. Now, in this blog we will learn to create your own python module or custom python module which we can import in our any program later when neede User defined modules can be A module can be defined as a file consisting of Python code created in the following three steps-

  1. Creating Module
  2. Importing Module
  3. Calling Module Object

1) Creating python modules

As defined earlier a module is just a Python’s program file consisting of functions, so, to create a new module open a new Python program file and define function(s) in it. Python module generally does not have global environment i.e. it does not need any main program. It can have only function definitions and no calling of function. But a module can have more than one function,

For example, type the following functions in a python program file and save it in the default Python directory by the name ‘mymod.py’. This program file will become a Python module created with the name ‘mymod’ having two function namely tarea() and carea().

def tarea(b, h):

ar=(b*h)/2

print(“Area of Triangle: “, ar)

def carea(r):

ar=3.14*r*r

print(“Area of Circle:”, ar)

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2) Importing Module

Once a module is created and saved it can be used in any program, any number time because it has become a permanent record. We can use our Python module by executing an import statement in some other Python source file. The ‘import’ has the following syntax:

Syntax

import module 1, module2,…

Example

import mymod

Python has few other ways to import a module in a program and use its function there. The first is Python’s ‘from…import’ statement. It lets us import specific function from a module into the current program file. The functions imported in this way can be called directly by their name without module name.

Syntax

from module_name import fname 1, fname2,…

Example

from mymod import tarea

tarea(4,3)

Python user defined functions with examples(2024)

3) Calling Module Objects

User defined module helps re-usability of codes defined in it as functions. So, once the module is created and functions defined we can call functions as follows-

Syntax

<module name>.<funct_name>(<list of values>)

mymod.tarea(5, 11)

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Python Module Example

Create a python module mymod.py which contain two functions namelu tarea and carea after that call this module from the other program

mymod.py

def tarea(b,h):
             ar=(b*h)/2
            print(“Area of triangle=”,ar)
def carea(r):
              ar=3.14*r*r
             print(“Area of circle=”,ar)

test.py

Note- In this file we will import our own create python module

from area import *
tarea(5,10)
carea(5)

Output

Area of triangle= 25.0

Area of circle= 78.5

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