Python for Beginners

March 12, 2025

<b>Introduction to Python</b>

Introduction to Python

Python is a high-level, interpreted programming language created by Guido van Rossum and released in 1991. It is widely used in web development, data science, AI, automation, and more.

1️⃣ Why Learn Python?

✅ Beginner-Friendly – Easy to learn syntax.
✅ Versatile – Used in web development, AI, and more.
✅ Interpreted – Runs code line by line.
✅ Huge Community – Large support network.
✅ Cross-Platform – Works on Windows, macOS, Linux.

2️⃣ How to Install Python?

Download Python from python.org.
Install and check version:

python --version

Run Python scripts in terminal or use IDEs like PyCharm, VS Code.

3️⃣ Basic Python Concepts

🔹 Printing Output

print("Hello, World!")

🔹 Variables and Data Types


name = "Alice"
age = 25
height = 5.6
is_student = True
print(type(age))

🔹 Conditional Statements


age = 18
if age >= 18:
    print("You are an adult.")
else:
    print("You are a minor.")

🔹 Loops

For Loop:


for i in range(5):
    print(i)

While Loop:


count = 0
while count < 3:
    print("Python is fun!")
    count += 1

🔹 Functions


def greet(name):
    return "Hello, " + name
print(greet("Alice"))

🔹 Lists


fruits = ["Apple", "Banana", "Cherry"]
print(fruits[0])

🔹 Dictionaries


student = {"name": "Alice", "age": 20, "grade": "A"}
print(student["name"])

4️⃣ Applications of Python

✔ Web Development – Django, Flask
✔ Data Science & AI – NumPy, Pandas, TensorFlow
✔ Automation & Scripting
✔ Game Development – Pygame
✔ Cybersecurity – Ethical hacking
✔ IoT – Works with Raspberry Pi, Arduino

5️⃣ Conclusion

Python is an excellent choice for beginners due to its simplicity, versatility, and strong community support. Learning Python opens doors to careers in AI, web development, data science, and more.

Start coding today! 🚀🔥

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