The document introduces Python as a popular, high-level, interpreted programming language known for its simplicity and versatility. It outlines Python's applications in web development, data analysis, and automation, alongside its advantages like reduced syntax and dynamic typing. Additionally, it covers basic programming concepts, data structures, and a simple program illustration using Python syntax.

1. INTRODUCTION
TO PYTHON
PROGRAMMING
Dr.M.Amsaprabhaa
Assistant Professor
Department of CSE
Shiv Nadar University
Chennai

3. What is Python?
Python is a very popular general-purpose
interpreted, interactive, object-oriented and high-
level programming language.
Python is dynamically-typed and garbage-collected
programming language.
It was created by Guido van Rossum during 1985-
1990.
Guido van Rossum

4. Compiling and Interpreting

6. Why should we use Python?
Python syntax allows programmers to express concepts in fewer lines of code.
Python is commonly used for developing websites and software, task automation,
data analysis, and data visualization.
Since it's relatively easy to learn, Python has been adopted by many non-
programmers such as accountants and scientists, for a variety of everyday tasks, like
organizing finances.

7. Top reasons to learn python
Data science
Scientific and mathematical computing
Web development
Finance and trading
System automation and administration
Computer graphics
Basic game development
Security and penetration testing

8. Top companies using python

10.  Dynamically-typed language means the type (for example- int, double, long, etc.) for a variable is
decided at run time not in advance because of this feature we don’t need to specify the type of variable.
 A garbage collection in Python manages the memory automatically. In simpler terms, the process of
automatic deletion of unwanted or unused objects to free the memory is called garbage collection in
Python.

11. Python Keywords

12. Programming Basics

13. An Integrated Development Environment (IDE) is software for building applications that combines
common developer tools into a single GUI.

15. Simple program
print("Welcome to the World of Python!")
text = "Welcome to the World of Python!"
print(text)
(Or)

16.  input() function is used to take input from the user.

17. Comments:

18.  Immutable is the when no change is possible over time. In
Python, if the value of an object cannot be changed over
time, then it is known as immutable. Once created, the value
of these objects is permanent.
 A tuple is a non-homogeneous data structure that can hold a
single row as well as several rows and columns.
 Dictionary is a non-homogeneous data structure that
contains key-value pairs. Tuples are represented by brackets
(). Dictionaries are represented by curly brackets {}.

19. OUTPUT

20. Selection
 Selection in Python is made using the two keywords ‘if’ and ‘elif’(elseif) and else

21. Functions
 Python used the keyword ‘def’ to define a function.
Syntax:
def function-name(arguments):
#function body

22.  As the name suggests it calls repeating things again and again.
Iteration/Looping

23. Module
 ‘import’ keyword is used to import a particular module into the python code.

24. print("Create a Password: ")
cp = input()
print("nEnter Two Numbers to Add: ")
numOne = int(input())
numTwo = int(input())
print("nEnter Password to Display the Result: ")
ep = input()
if cp == ep:
sum = numOne + numTwo
print("nResult = ", sum)
else:
print("nWrong Password!")
SIMPLE PROGRAM

25. REFERENCES