Introduction to Python Programming
Python is one of the most popular programming languages today, known for its simplicity and versatility. Whether you're a beginner or an experienced developer, Python offers a clear and concise syntax, making it easy to learn and use.
Why Learn Python?
Easy to Read and Write: Python's syntax is clean and easy to understand, which helps beginners quickly grasp programming concepts.
Versatile: Python is used in web development, data analysis, artificial intelligence, machine learning, and more.
Large Community: With a vast community, finding solutions to your coding problems is just a Google search away.
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Getting Started with Python
Before you begin, make sure Python is installed on your system. You can download it from python.org.
Hello, World!
The classic first program in any language:
print("Hello, World!")
This command prints "Hello, World!" on the screen.
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Python Basics
1. Variables and Data Types
Variables store data values. Python is dynamically typed, meaning you don’t need to declare the type of variable.
# Example
name = "John" # String
age = 25 # Integer
height = 5.9 # Float
is_student = True # Boolean
2. Conditional Statements
Use if, elif, and else for decision-making.
# Example
age = 18
if age >= 18:
print("You are an adult.")
else:
print("You are a minor.")
3. Loops
Python has two main types of loops: for and while.
# For loop
for i in range(5):
print(i)
# While loop
count = 0
while count < 5:
print(count)
count += 1
4. Functions
Functions are blocks of reusable code.
# Example
def greet(name):
return f"Hello, {name}!"
print(greet("Alice"))
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Practice Makes Perfect
To solidify your understanding of Python, try solving small problems, such as:
Creating a calculator
Building a to-do lis
t
Writing a program to find the factorial of a number
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