Modules :

Every python file is a module.

To create a module just save the code you want in a file with the file extension .py

Modules have special variables.

example:

file (file---->The file path of the module)

name (name---->Name of the module)

doc (documtation string of the module) ("""abcd""" or '''abcd''')

input

#current module name - vara.py



""" The nature is beautiful"""

print(__name__) 

print(__file__)

print(__doc__)

output

__main__

C:\Users\Lakshmipriya\OneDrive\Desktop\VARATHARAJAN\vara.py

The nature is beautiful



The import statement

The import statement in Python is used to bring code from one module into another.

example :

#num.py



def add(no1,no2):

    print(no1+no2)





def subtract(no1,no2):

    print(no1-no2)





def multiply(no1,no2):

    print(no1*no2)





def divide(no1,no2):

    print(no1/no2)

input

#vara.py



import num



num.add(10,20)

num.subtract(50,25)

*output *




30

25



If we need specific functions alone from one module means then no need to import whole module,instead we can use "from" to take specific function

example

input

#vara.py



from num import add,subtract



add(10,20)

subtract(50,25)

multiply(10,20) #this function is not defind

output



30

25

Traceback (most recent call last):

File "C:\Users\Lakshmipriya\OneDrive\Desktop\VARATHARAJAN\vara.py", line 7, in <module>

multiply(10,20)

NameError: name 'multiply' is not defined



help()

To see all details about the particular module like functions, file location, including documentation string.

num.py

''' This module contain some functions'''

def add(no1,no2):

print(no1+no2)

def subtract(no1,no2):

print(no1-no2)

input

import num

print(help(num))

output

NAME

    num - This module contain some functions



FUNCTIONS

    add(no1, no2)



    divide(no1, no2)



    multiply(no1, no2)



    subtract(no1, no2)



FILE

    c:\users\lakshmipriya\onedrive\desktop\varatharajan\num.py





None