create and use a python library in a class code example

Example 1: how to make a class in python

class Person:
  def __init__(self, _name, _age):
    self.name = _name
    self.age = _age
   
  def sayHi(self):
    print('Hello, my name is ' + self.name + ' and I am ' + self.age + ' years old!')
    
p1 = Person('Bob', 25)
p1.sayHi() # Prints: Hello, my name is Bob and I am 25 years old!

Example 2: importing modules with package in python

from pakage_name.module_name import function_name
# now we can directly use function

##################################  OR  ########################################

from pakage_name import module_name
# now we have to use module_name.function_name

Example 3: package in python

A package is basically a directory with Python files and a file with the name __init__.py