Python_Programming_Filled_PPT.pptx PYTHON

Python Programming Language
• An Introduction to Python – Simple, Powerful, and Popular.
Used worldwide for Web Development, Data Science, Artificial
Intelligence, Automation, and more.

History of Python
• • Created by Guido van Rossum in 1991.
• Named after the British comedy group 'Monty Python'.
• Open-source and community-driven.
• Python 2 vs Python 3 – Python 3 is the present and future.

Features of Python
• • Easy to learn and use with simple syntax.
• Interpreted and dynamically typed.
• Object-oriented and functional programming support.
• Huge standard library.
• Cross-platform and portable.

Why Learn Python?
• • Most popular programming language globally.
• High demand in IT industry.
• Used in AI, ML, Web Apps, Data Analytics.
• Strong online community and support.
• Ideal for both beginners and experts.

Python Applications
• • Web Development: Django, Flask.
• Data Science: Pandas, NumPy.
• Machine Learning: TensorFlow, Scikit-learn.
• Automation: Scripts, Bots.
• Cybersecurity, Game Development, IoT.

Installing Python
• • Download from python.org.
• Works on Windows, Mac, Linux.
• Install IDEs like PyCharm, VS Code, Jupyter Notebook.
• Verify installation: python --version.

First Program: Hello World
• print('Hello, World!')
Explanation:
• print() is a built-in function.
• Displays output on screen.
• First step to start coding in Python.

Python Syntax Basics
• • Indentation is mandatory (no braces).
• Case-sensitive language.
• Variables don’t need explicit declaration.
• Comments use # symbol.
• Example:
for i in range(3):
print(i)

Data Types in Python
• • Numeric: int, float, complex.
• String: 'Hello'.
• List: [1,2,3].
• Tuple: (1,2,3).
• Dictionary: {'a':1,'b':2}.
• Set: {1,2,3}.
• Boolean: True/False.

Variables & Constants
• • Python variables don’t need type declaration.
• Example: x=10, name='Ayush'.
• Constants are written in UPPERCASE by convention.
• Example: PI = 3.14.

Operators in Python
• • Arithmetic: +, -, *, /, %.
• Comparison: ==, !=, >, <.
• Logical: and, or, not.
• Assignment: =, +=, -=.
• Bitwise and Identity operators.

Conditional Statements
• if, elif, else.
Example:
x=5
if x>0:
print('Positive')
elif x==0:
print('Zero')
else:
print('Negative')

Loops in Python
• • For loop – for i in range(5).
• While loop – while x < 10.
• Break and continue statements.
• Example:
for i in range(1,6):
print(i)

Functions in Python
• • Defined using def keyword.
• Supports arguments and return values.
• Example:
def add(a,b):
return a+b
print(add(5,3))

Modules & Packages
• • Built-in modules: math, os, datetime.
• External libraries via pip install.
• Example:
import math
print(math.sqrt(16))

Exception Handling
• • Handles runtime errors gracefully.
• try-except-finally block.
• Example:
try:
print(10/0)
except ZeroDivisionError:
print('Cannot divide by zero')

File Handling in Python
• • Open, Read, Write files.
• Example:
f=open('data.txt','w')
f.write('Hello')
f.close()
Modes: r, w, a, rb, wb.

Object-Oriented Programming
• • Class & Object.
• Concepts: Inheritance, Polymorphism, Encapsulation, Abstraction.
• Example:
class Car:
def __init__(self,brand):
self.brand=brand
c=Car('BMW')

Popular Python Libraries
• • NumPy & Pandas – Data Analysis.
• Matplotlib & Seaborn – Data Visualization.
• Django & Flask – Web Development.
• TensorFlow & PyTorch – AI/ML.
• OpenCV – Computer Vision.

Conclusion
• • Python is versatile and beginner-friendly.
• Backbone of Data Science, AI, and Web Apps.
• Large supportive community.
• Great career opportunities.
Keep Practicing Python Daily!
👉

Python_Programming_Filled_PPT.pptx PYTHON

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