Python Notes
HubHistory of Python - Complete Guide 2026Python Applications - Complete Guide 2026Python Features - Complete Guide 2026What is Python? - Complete Guide 2026Why Learn Python? - Complete Guide 2026Your First Python Program – Hello World & Beyond 2026How to Install Python on Windows, Mac & Linux – Complete Guide 2026Install VS Code for Python – Complete Setup Guide with Extensions 2026Python Environment Setup – Virtual Environments, pip & Project Structure 2026Python IDLE – Complete Guide for Beginners 2026Python CommentsPython Data TypesPython Input and OutputPython OperatorsPython SyntaxPython Strings BasicsPython Type CastingPython VariablesBreak, Continue and Pass in PythonElif Statement in PythonFor Loop in PythonIf-Else Statement in PythonIf Statement in PythonNested If in PythonPattern Programs in PythonWhile Loop in PythonDecorators in PythonFunction Arguments in PythonFunctions Basics in PythonGenerators in PythonLambda Functions in PythonRecursive Functions in PythonReturn Statement in PythonScope of Variables in PythonAbstraction in PythonClasses and Objects in PythonConstructors in PythonEncapsulation in PythonInheritance in PythonMagic Methods (Dunder Methods) in PythonMethod Overriding in PythonPolymorphism in PythonPython Comprehensions – List, Dict, Set & GeneratorPython Dictionaries – Key-Value StorePython Dictionary Methods – Complete ReferencePython List Methods – All Built-in MethodsPython Lists – Complete GuidePython Set Methods – Complete ReferencePython Sets – Unordered Unique CollectionsPython Tuples – Immutable SequencesPython Asynchronous Programming with asyncioPython Context ManagersAdvanced Python DecoratorsAdvanced Python GeneratorsPython Iterators - Advanced GuidePython Memory ManagementPython MultiprocessingPython MultithreadingCRUD Operations in Python DatabasesMySQL with Python (mysql-connector-python)ORM Introduction with SQLAlchemyPostgreSQL with Python (psycopg2)SQLite3 with PythonIntroduction to DjangoDjango Models and ORMDjango REST API with DRFDjango ViewsIntroduction to FlaskFlask RoutingFlask Templates with Jinja2Email Automation with PythonPDF Automation with PythonSelenium Web Automation with PythonTask Scheduler with PythonWeb Scraping with PythonData Analysis with PythonData Cleaning with PythonData Visualization ProjectData Visualization with MatplotlibNumPy IntroductionPandas IntroductionStatistical Visualization with SeabornClassification AlgorithmsClustering AlgorithmsIntroduction to Machine LearningMachine Learning Project: Churn PredictionModel Evaluation and SelectionRegression AlgorithmsSave pipeline (includes preprocessing + model)AI Assistant ProjectCalculator ProjectChatbot ProjectExpense Tracker ProjectFace Detection ProjectPassword Generator ProjectWeather App ProjectPython Coding Interview QuestionsPython OOP Interview Questions and AnswersPython Master CheatsheetPython Interview Questions and AnswersPython Best PracticesCommon Python Errors and SolutionsPython Debugging TechniquesPython Learning Resources
Write your first Python program step-by-step. Learn Hello World, variables, input/output, comments, and basic syntax. Pehla Python program kaise likhein – Hindi mein complete beginner guide.
Hindi: Congratulations! Python install ho gaya, editor ready hai – ab waqt aa gaya hai apna pehla Python program likhne ka! Yeh guide aapko step-by-step pehle simple program se lekar thoda advanced programs tak le jaayegi.
🌍 The Tradition of Hello World
When programmers learn a new language, they always start with a "Hello, World!" program. This tradition started in the 1970s from a book called "The C Programming Language."
Hindi: Har programming language mein pehla program "Hello, World!" print karna hota hai – yeh ek tradition hai jo 1970s se chali aa rahi hai. Python mein yeh program sirf ek line mein likha jaata hai – yeh Python ki simplicity ka sabse bada proof hai!
| │ Java | System.out.println("Hello, World!"); │ |
| │ C++ | cout << "Hello, World!" << endl; │ |
| │ C | printf("Hello, World!\n"); │ |
| │ Java | System.out.println("Hello, World!"); │ |
| │ PHP | echo "Hello, World!"; │ |
| │ Go | fmt.Println("Hello, World!") │ |
| │ Python | print("Hello, World!") ◄── Simplest! │ |
Python wins! Just one simple line vs multiple complex lines in other languages.
🚀 Your First Line of Code
Method 1: Python Shell (Interactive)
Open your terminal or IDLE Shell and type:
python example
>>> print("Hello, World!")Press Enter and see the magic!
Output
Hello, World!
🎉 Congratulations! You just ran your first Python code!
Hindi: Yeh dekho! Sirf ek line – print("Hello, World!") – aur computer ne print kar diya. Python itna simple hai!Method 2: Script File
Create a file called hello.py and write:
python example
# hello.py – My First Python Program
# Author: Your Name
# Date: June 12, 2026
print("Hello, World!")
print("Namaste India!")
print("Python seekhna shuru karte hain!")Run it:
bash example
python hello.pyOutput
Hello, World! Namaste India! Python seekhna shuru karte hain!
🏃 Running Python in Different Ways
Hindi: Python code chalane ke kai tarike hain – inhe jaanna important hai.
| │ Open IDLE | type in Shell window │ |
| │ IDLE | File → New File → write code → F5 to run │ |
| │ Open .py file | Click ▶ or press F5 │ |
| │ $ jupyter notebook | write in cells → Shift+Enter │ |
| │ https | //repl.it or https://colab.research.google.com │ |
🖨️ Understanding print()
The print() function is the most fundamental Python function – it displays output on the screen.
Hindi: print() Python ka sabse basic aur important function hai. Yeh screen par kuch bhi dikhata hai – numbers, text, variables sab kuch!Basic Usage:
python example
# Print a string (text)
print("Hello, Python!")Output
Hello, Python!
python example
# Print a number
print(42)Output
42
python example
# Print multiple items
print("My age is", 25)Output
My age is 25
python example
# Print with a blank line (just call print with no args)
print("Line 1")
print()
print("Line 2")Output
Line 1 Line 2
print() Parameters:
python example
# sep parameter – separator between items (default: space)
print("Python", "is", "awesome", sep="-")Output
Python-is-awesome
python example
print("a", "b", "c", sep=", ")Output
a, b, c
python example
# end parameter – what to print at end (default: newline \n)
print("Hello", end=" ")
print("World")Output
Hello World
python example
print("Loading", end="")
print(".", end="")
print(".", end="")
print(".", end="")
print(" Done!")Output
Loading... Done!
python example
# Print special characters
print("Name:\tRahul") # \t = tab
print("Line1\nLine2") # \n = new line
print("He said \"Hi\"") # \" = escaped quote
print("Path: C:\\Users") # \\ = backslashOutput
Name: Rahul Line1 Line2 He said "Hi" Path: C:\Users
Hindi:print()ke andarsepparameter se items ke beech separator set karte hain, aurendparameter se line ke end mein kya aaye woh set karte hain.\nnewline hai,\ttab hai.
💬 Python Comments
Comments are notes in your code that Python ignores. They are for humans to read.
Hindi: Comments woh text hota hai jo Python execute nahi karta – yeh sirf programmers ke liye notes hain. Good comments code ko samajhne mein help karte hain.
Single-line Comments:
python example
# This is a single-line comment
print("Hello") # This comment is after the code
# Python ignores everything after the # symbol
# name = "Rahul" ← This line is commented out (won't run)Multi-line Comments (Docstrings):
python example
"""
This is a multi-line comment
or docstring.
It can span multiple lines.
"""
print("The docstring above is ignored")
'''
You can also use single quotes
for multi-line strings/comments
'''Output
The docstring above is ignored
Why Use Comments?
python example
# ❌ Bad code (no comments, hard to understand)
r = 7
a = 3.14159 * r * r
# ✅ Good code (with comments, easy to understand)
radius = 7 # radius of circle in cm
pi = 3.14159 # value of pi (π)
area = pi * radius * radius # formula: A = π × r²
print(f"Circle area: {area:.2f} cm²")Output
Circle area: 153.94 cm²
Hindi: Comments likhna ek achhi habit hai. Chahe code simple lage, 6 mahine baad aap hi nahi samajhte ki kyun kuch kiya tha – comments yaad dilate hain!
📦 Variables – Storing Information
Variables are containers that store data values. Think of them like labeled boxes.
Hindi: Variable ek box ki tarah hai jisme koi bhi value rakh sakte hain – number, text, list kuch bhi. Box ka naam hi variable ka naam hota hai.
| Box label: name | ||
|---|---|---|
| Contents: "Rahul" | ||
| Box label: age | ||
| Contents: 25 |
Creating Variables:
python example
# Assign a value to a variable using =
name = "Alice"
age = 30
height = 5.6
is_student = True
# Print them
print(name)
print(age)
print(height)
print(is_student)Output
Alice 30 5.6 True
Variable Naming Rules:
python example
# ✅ Valid variable names
my_name = "Rahul"
firstName = "Priya" # camelCase
_private = "hidden" # starts with underscore
age2 = 25 # contains number (not at start)
CONSTANT = 3.14159 # UPPERCASE for constants
# ❌ Invalid variable names
# 2age = 25 → cannot start with number
# my-name = "Raj" → hyphens not allowed
# my name = "Ali" → spaces not allowed
# class = "Python" → class is a keyword
# for = 10 → for is a keywordVariable Rules Summary:
Code example
✅ Start with a letter or underscore (_)
✅ Can contain letters, numbers, and underscores
✅ Case-sensitive (name ≠ Name ≠ NAME)
❌ Cannot start with a number
❌ Cannot contain spaces or special characters
❌ Cannot be a Python keyword (if, for, while, def, class...)Multiple Assignment:
python example
# Assign same value to multiple variables
x = y = z = 0
print(x, y, z)Output
0 0 0
python example
# Assign different values in one line
a, b, c = 10, 20, 30
print(a, b, c)Output
10 20 30
python example
# Swap variables (Python magic!)
x = 5
y = 10
x, y = y, x # Swap!
print(f"x={x}, y={y}")Output
x=10, y=5
Hindi: Variables Python mein dynamically typed hote hain – aapko batana nahi padta ki variable mein kaunsa type store hoga. Python automatically samajh jaata hai.
🎲 Basic Data Types
Hindi: Python mein 4 basic data types hain: int (integers/whole numbers), float (decimal numbers), str (text), aur bool (True/False).
python example
# Integer – whole numbers
my_age = 25
year = 2026
temperature = -5
big_number = 1_000_000 # underscore as thousands separator
# Float – decimal numbers
pi = 3.14159
price = 99.99
weight = 65.5
# String – text
name = "Rahul Kumar"
city = 'Mumbai'
message = "I love Python!"
multiline = """This is
a multiline
string"""
# Boolean – True or False
is_sunny = True
has_python = False
is_adult = Truepython example
# Check the type of a variable
print(type(25))
print(type(3.14))
print(type("Hello"))
print(type(True))Output
<class 'int'> <class 'float'> <class 'str'> <class 'bool'>
Type Conversion:
python example
# Convert between types
age_str = "25"
age_int = int(age_str) # String to Integer
print(age_int + 5) Output
30
python example
price = 99.99
price_int = int(price) # Float to Integer (truncates)
price_str = str(price) # Float to String
print(price_int)
print(price_str) Output
99 99.99
python example
# Boolean conversions
print(bool(0)) # 0 = False
print(bool(1)) # 1 = True
print(bool("")) # empty string = False
print(bool("hi")) # non-empty = TrueOutput
False True False True
🎤 Getting User Input
Hindi: input() function se user se data le sakte hain – jaise calculator mein number type karte hain.Basic input():
python example
# Get user's name
name = input("Enter your name: ")
print("Hello,", name + "!")Output
Enter your name: Priya Hello, Priya!
Input is Always a String!
python example
# This will cause an error:
age = input("Enter your age: ")
next_year_age = age + 1 # ❌ TypeError! Can't add string + intpython example
# Correct way – convert to int first:
age = int(input("Enter your age: "))
next_year_age = age + 1 # ✅ Works now
print(f"Next year you'll be {next_year_age}")Output
Enter your age: 20 Next year you'll be 21
python example
# Float input
price = float(input("Enter price: "))
tax = price * 0.18
total = price + tax
print(f"Price: ₹{price:.2f}")
print(f"Tax (18%): ₹{tax:.2f}")
print(f"Total: ₹{total:.2f}")Output
Enter price: 500 Price: ₹500.00 Tax (18%): ₹90.00 Total: ₹590.00
Hindi:input()hamesha string return karta hai. Agar number chahiye tohint()yafloat()se convert karna padta hai.
✍️ String Formatting
Hindi: String formatting se text aur variables ko milaakar ek achha output bana sakte hain.
Method 1: f-Strings (Recommended – Python 3.6+)
python example
name = "Rahul"
age = 25
city = "Delhi"
# f-string: prefix f before the string, use {} for variables
message = f"My name is {name}, I am {age} years old from {city}."
print(message)Output
My name is Rahul, I am 25 years old from Delhi.
python example
# f-strings support expressions inside {}
price = 1000
discount = 200
print(f"You saved ₹{discount} ({discount/price*100:.1f}% off)!")Output
You saved ₹200 (20.0% off)!
Method 2: .format()
python example
name = "Priya"
score = 95
print("Student: {}, Score: {}%".format(name, score))Output
Student: Priya, Score: 95%
Method 3: % Formatting (Old style)
python example
name = "Ali"
print("Hello, %s!" % name)
print("Pi = %.2f" % 3.14159)Output
Hello, Ali! Pi = 3.14
Format Specifiers:
python example
pi = 3.14159265358979
print(f"{pi:.2f}") # 2 decimal places → 3.14
print(f"{pi:.4f}") # 4 decimal places → 3.1416
print(f"{pi:10.2f}") # width 10, 2 decimal → ' 3.14'
print(f"{1000000:,}") # Thousands separator → 1,000,000
print(f"{'hello':>10}")# Right align width 10 → ' hello'
print(f"{'hello':<10}")# Left align width 10 → 'hello '
print(f"{'hello':^10}")# Center width 10 → ' hello '
print(f"{42:05d}") # Zero pad width 5 → 00042Output
3.14
3.1416
3.14
1,000,000
hello
hello
hello
00042➕ Basic Arithmetic Operations
Hindi: Python mein basic math operations karna bahut simple hai.
python example
# Basic arithmetic operators
a = 20
b = 6
print(f"{a} + {b} = {a + b}") # Addition
print(f"{a} - {b} = {a - b}") # Subtraction
print(f"{a} * {b} = {a * b}") # Multiplication
print(f"{a} / {b} = {a / b}") # Division (float result)
print(f"{a} // {b} = {a // b}") # Floor division (int result)
print(f"{a} % {b} = {a % b}") # Modulus (remainder)
print(f"{a} ** {b} = {a ** b}") # Exponentiation (power)Output
20 + 6 = 26 20 - 6 = 14 20 * 6 = 120 20 / 6 = 3.3333333333333335 20 // 6 = 3 20 % 6 = 2 20 ** 6 = 64000000
python example
# Operator shorthand (augmented assignment)
x = 10
x += 5 # same as x = x + 5
print(x) # 15
x -= 3 # x = x - 3
print(x) # 12
x *= 2 # x = x * 2
print(x) # 24
x //= 5 # x = x // 5
print(x) # 4Output
15 12 24 4
Order of Operations (PEMDAS):
python example
# Python follows standard math order of operations
result = 2 + 3 * 4 # Multiplication first: 2 + 12 = 14
print(result)
result = (2 + 3) * 4 # Brackets first: 5 * 4 = 20
print(result)
result = 10 - 2 ** 3 # Power first: 10 - 8 = 2
print(result)Output
14 20 2
Hindi: Python mein PEMDAS order follow hota hai: Parentheses (brackets) → Exponents (power) → Multiplication/Division → Addition/Subtraction.
🎯 Your First Real Program
Now let's combine everything into a real program!
Hindi: Ab tak jo seekha hai sab use karke ek complete program banate hain – ek simple student grade calculator!
python example
# student_grade_calculator.py
# A complete beginner Python program
# Uses: print, input, variables, arithmetic, f-strings
# ============================================
# STUDENT GRADE CALCULATOR
# WohoTech Python Master Course
# ============================================
print("=" * 50)
print(" STUDENT GRADE CALCULATOR")
print(" WohoTech Python Course")
print("=" * 50)
print()
# Get student information
student_name = input("Enter student name: ")
roll_number = input("Enter roll number: ")
print()
print("Enter marks for 5 subjects (out of 100):")
print("-" * 40)
# Get marks for 5 subjects
math = float(input("Mathematics: "))
science = float(input("Science : "))
english = float(input("English : "))
hindi = float(input("Hindi : "))
computer = float(input("Computer : "))
# Calculate results
total = math + science + english + hindi + computer
max_marks = 500
percentage = (total / max_marks) * 100
average = total / 5
# Determine grade
if percentage >= 90:
grade = "A+"
remark = "Outstanding!"
elif percentage >= 80:
grade = "A"
remark = "Excellent!"
elif percentage >= 70:
grade = "B+"
remark = "Very Good!"
elif percentage >= 60:
grade = "B"
remark = "Good!"
elif percentage >= 50:
grade = "C"
remark = "Average"
elif percentage >= 40:
grade = "D"
remark = "Below Average"
else:
grade = "F"
remark = "Fail – Please Work Harder"
# Display result card
print()
print("=" * 50)
print(" RESULT CARD")
print("=" * 50)
print(f" Student Name : {student_name}")
print(f" Roll Number : {roll_number}")
print("-" * 50)
print(f" Mathematics : {math:.1f}")
print(f" Science : {science:.1f}")
print(f" English : {english:.1f}")
print(f" Hindi : {hindi:.1f}")
print(f" Computer : {computer:.1f}")
print("-" * 50)
print(f" Total Marks : {total:.1f} / {max_marks}")
print(f" Percentage : {percentage:.2f}%")
print(f" Average : {average:.2f}")
print(f" Grade : {grade}")
print(f" Remark : {remark}")
print("=" * 50)
print()
print("Thank you for using WohoTech Grade Calculator!")Output
==================================================
STUDENT GRADE CALCULATOR
WohoTech Python Course
==================================================
Enter student name: Anjali Sharma
Enter roll number: CS2026-42
Enter marks for 5 subjects (out of 100):
----------------------------------------
Mathematics: 92
Science : 88
English : 79
Hindi : 95
Computer : 97
==================================================
RESULT CARD
==================================================
Student Name : Anjali Sharma
Roll Number : CS2026-42
--------------------------------------------------
Mathematics : 92.0
Science : 88.0
English : 79.0
Hindi : 95.0
Computer : 97.0
--------------------------------------------------
Total Marks : 451.0 / 500
Percentage : 90.20%
Average : 90.20
Grade : A+
Remark : Outstanding!
==================================================
Thank you for using WohoTech Grade Calculator!Hindi: Yeh program ek complete grade calculator hai – student ka naam, subjects ke marks input lete hain, total, percentage, average calculate karte hain, aur grade dete hain. Ek real Python program!
📐 Python Syntax Rules
Hindi: Python mein kuch important syntax rules hain jo hamesha yaad rakhni chahiye.
┌─────────────────────────────────────────────────────────────────┐
│ PYTHON SYNTAX RULES │
├─────────────────────────────────────────────────────────────────┤
│ │
│ 1. INDENTATION MATTERS │
│ Python uses spaces (4 spaces) to define code blocks │
│ Other languages use {} brackets – Python uses spaces! │
│ │
│ 2. CASE SENSITIVE │
│ myVar ≠ myvar ≠ MYVAR (all different!) │
│ True ≠ true (True is valid, true is not!) │
│ │
│ 3. NO SEMICOLONS NEEDED │
│ Python ends statements with newline, not ; │
│ (You can use ; but it's bad style) │
│ │
│ 4. COLON FOR BLOCKS │
│ if/for/while/def/class end with : and next line indents │
│ │
│ 5. COMMENTS WITH # │
│ # This is a comment │
│ │
│ 6. STRINGS IN QUOTES │
│ "double quotes" or 'single quotes' – both work │
└─────────────────────────────────────────────────────────────────┘
Indentation Examples:
python example
# ✅ Correct indentation (4 spaces)
if True:
print("Inside if") # 4 spaces
if True:
print("Nested if") # 8 spaces (4+4)
# ❌ Wrong – mixed indentation
if True:
print("Line 1") # 4 spaces
print("Line 2") # 2 spaces ← IndentationError!Hindi: Python mein indentation (spaces) ki galti sabse common beginner mistake hai. Hamesha 4 spaces use karein – Tab key bhi 4 spaces insert karta hai most editors mein.
⚠️ Common Beginner Mistakes
Mistake 1: Forgetting Quotes Around Strings
python example
# ❌ Wrong
name = Rahul # NameError: Rahul is not defined
# ✅ Correct
name = "Rahul" # String in quotesMistake 2: Case Sensitivity
python example
# ❌ Wrong
Print("Hello") # NameError: name 'Print' is not defined
Name = "Rahul"
print(name) # NameError: name 'name' is not defined
# ✅ Correct
print("Hello") # lowercase print
Name = "Rahul"
print(Name) # same case as variableMistake 3: Wrong Arithmetic with Strings
python example
# ❌ Wrong
age = input("Enter age: ") # Returns string "25"
new_age = age + 1 # TypeError: can only concatenate str (not "int") to str
# ✅ Correct
age = int(input("Enter age: ")) # Convert to int first
new_age = age + 1 # Now it works: 25 + 1 = 26Mistake 4: Indentation Error
python example
# ❌ Wrong
for i in range(3):
print(i) # IndentationError
# ✅ Correct
for i in range(3):
print(i) # 4 spaces before printMistake 5: Division Creates Float
python example
# Python 3: division always returns float
result = 10 / 2
print(result) # 5.0, NOT 5
print(type(result)) # <class 'float'>
# Use // for integer division
result = 10 // 2
print(result) # 5 (int)🔧 Troubleshooting Errors
Hindi: Python mein common errors aur unke solutions yahan diye gaye hain.
SyntaxError
python example
# Error:
print("Hello" # Missing closing parenthesis
# SyntaxError: '(' was never closed
# Fix:
print("Hello") # Add closing )NameError
python example
# Error:
print(massage) # Typo! Should be 'message'
# NameError: name 'massage' is not defined
# Fix:
message = "Hello"
print(message) # Use the correct variable nameTypeError
python example
# Error:
print("I am " + 25 + " years old")
# TypeError: can only concatenate str (not "int") to str
# Fix:
print("I am " + str(25) + " years old") # Convert int to str
# Or use f-string:
print(f"I am {25} years old") # Even better!IndentationError
python example
# Error:
def greet():
print("Hi") # Not indented!
# IndentationError: expected an indented block
# Fix:
def greet():
print("Hi") # 4 spaces indentationValueError
python example
# Error:
age = int("twenty")
# ValueError: invalid literal for int() with base 10: 'twenty'
# Fix:
age = int("20") # Use a numeric stringHindi: Error messages padna bahut important hai – woh exactly batate hain ki kya galat hua. Python ke error messages bahut descriptive hote hain.
💪 Practice Programs
Hindi: Yeh practice programs aap khud likhein aur run karein – seekhne ka sabse achha tarika practice karna hai!
Program 1: Simple Greeting
python example
# Write a program that asks for name and age
# and prints a personalized greeting
name = input("What is your name? ")
age = int(input("How old are you? "))
birth_year = 2026 - age
print()
print(f"Hello, {name}! 👋")
print(f"You were born in {birth_year}.")
print(f"When you turn 100, it will be {birth_year + 100}.")Program 2: Temperature Converter
python example
# Convert Celsius to Fahrenheit and Kelvin
celsius = float(input("Enter temperature in Celsius: "))
fahrenheit = (celsius * 9/5) + 32
kelvin = celsius + 273.15
print(f"\n{celsius}°C = {fahrenheit:.2f}°F = {kelvin:.2f}K")Program 3: Area Calculator
python example
# Calculate area of different shapes
import math
print("=== AREA CALCULATOR ===")
print("1. Circle")
print("2. Rectangle")
print("3. Triangle")
print()
choice = input("Enter choice (1/2/3): ")
if choice == "1":
r = float(input("Enter radius: "))
area = math.pi * r ** 2
print(f"Area of Circle = {area:.4f} sq units")
elif choice == "2":
l = float(input("Enter length: "))
w = float(input("Enter width: "))
area = l * w
print(f"Area of Rectangle = {area:.2f} sq units")
elif choice == "3":
b = float(input("Enter base: "))
h = float(input("Enter height: "))
area = 0.5 * b * h
print(f"Area of Triangle = {area:.2f} sq units")
else:
print("Invalid choice!")🚀 Summary
You have written your first Python programs!
Example
✅ Printed "Hello, World!" in multiple ways
✅ Learned print() with all parameters
✅ Used comments (#) to document code
✅ Created variables of different types
✅ Got user input with input()
✅ Used f-strings for formatting
✅ Performed arithmetic operations
✅ Built a complete grade calculator program
✅ Learned Python syntax rules
✅ Know how to read and fix common errors
Hindi: Shabash! Aapne apna pehla Python program likha aur run kiya. Ab aap variables, print, input, aur arithmetic – yeh sab samajhte hain. Yeh foundation hai – aage aur interesting cheezein seekhenge!
Next Steps:
| Step | Topic | File |
|---|---|---|
| ← Previous | Python IDLE | python-idle.mdx |
| → Next | Environment Setup | python-environment-setup.mdx |
| → Advanced | Python Data Types | Coming Soon |
*Last Updated: June 12, 2026 | Author: WohoTech | Category: Python Setup*
Exam Focus
Revise definitions, diagrams, examples, and short-answer points for Your First Python Program – Hello World & Beyond 2026.
Interview Use
Prepare one clear explanation, one practical example, and one common mistake for this Python Master Course topic.
Search Terms
python-master-course, python master course, python, master, course, setup, first, program
Related Python Master Course Topics
Continue learning this concept
SetupHow to Install Python on Windows, Mac & Linux – Complete Guide 2026Learn how to download and install Python on Windows, macOS, and Linux step-by-step. Includes PATH setup, version verification, and troubleshooting. Python install kaise kare – Hindi mein samjhein.SetupInstall VS Code for Python – Complete Setup Guide with Extensions 2026Learn how to install Visual Studio Code for Python development. Setup Python extension, debugger, linter, formatter and essential tools. VS Code Python setup kaise karein – Hindi mein complete guide.SetupPython Environment Setup – Virtual Environments, pip & Project Structure 2026Complete guide to setting up a professional Python development environment. Learn virtual environments, pip package manager, .env files, project structure, and best practices. Python environment setup kaise karein – Hindi mein.SetupPython IDLE – Complete Guide for Beginners 2026Master Python IDLE – PythonAdvanced PythonPython Asynchronous Programming with asyncioDeep dive into Python async/await, asyncio event loop, coroutines, tasks, async generators, aiohttp, and real-world asynchronous patterns with Hindi explanations.Advanced PythonPython Context ManagersComprehensive guide to Python context managers using with statement, __enter__ and __exit__ methods, contextlib module, nested context managers and custom resource management.