Functions defined in module ~ whereisstuff

Functions defined in modules using Python libraries:

A Module is a file containing Python functions, variables, classes, and statements (.py file called modules).
The package is nothing but, it is a collection of modules stored in one folder called a package or library.

Importing Python modules:

To import entire module:
Syntax:
          import <module name>
Example:
          import math
To import specific function from module:
Syntax:
          from <module_name> import <function_name>
Example:
          from math import sqrt
Another way of importing entire module:
Syntax:
          from <module_name> import *
Example:
          from math import *
Accessing function:
Syntax:
          <module_name>.<function_name>
Example:
          print(math.sqrt(5))

Example program using import:

import math
print("Squre root of 4 value:",math.sqrt(4))
print("100 log10 value:",math.log10(100))
print("sin 90 value:",math.sin(90))
print("8 power of 3 value:",math.pow(8,3))

Output:

Example program uisng from module import*:

from random import*
print("Range from 1 to 6 of random value:",randrange(1,6))
print ("List 1, 7, 3, 10, 4 of random value:",choice([1, 7, 3, 10, 4]))

Output: