Modules and Packages are the most important and widely used concept in python.Modules and Packages support reusability and easy coding for programmers.
What is a Modules in Python
A Modules is simply a single python file with extension .py. Modules contains global variables and group of functions .Modules is a single executable .py files.we can use functions and global variables in module in any python page by simply importing that module in that page.Here is the example usage of a Modules
Module calculator.py
def sum(a,b):
sum = a + b
print("The sum is: ", sum)
Importing and calling that Module import calculator calculator.sum(3,4)
What is a Packages in Python
Packages is a collections of modules, it simple a directory that contains lots of modules and a __init__.py file.The package may contains sub package .
employee(Package)
| __init__.py (Constructor)
| contact.py (Module)
| department.py (Module)
| salary.py (Module)