🐍 Python – Introduction

 

🔹 Why Python?
• Simple and beginner-friendly — syntax looks like English.
• Works on any operating system (Windows, Linux, macOS).
• Huge libraries and frameworks for AI, Web Development, Data Science, and Automation.
• Free, open-source, and backed by a strong global community.

                                    

📌 Key Features of Python

1. Easy to Learn and Readable
• Simple and clean syntax.
• Requires less code compared to C or Java.
Example:

print("Hello, World!")

 

2. Interpreted and Dynamically Typed
• No need for compilation — executes line by line.
• Variables don’t need explicit type declarations.
Example:

x = 10       # integer  

x = "Python" # now string   

print(x)

 

3. Cross-Platform (Portable)
• The same code runs on Windows, Linux, or macOS.
Example:

print("Runs everywhere!")

 

4. Rich Libraries and Frameworks
• Data: NumPy, Pandas
• AI/ML: TensorFlow, PyTorch
• Web: Flask, Django
Example:

import requests   

res = requests.get("https://www.google.com")   

print(res.status_code)  # 200 means OK

 

5. Supports Multiple Paradigms (OOP, Functional, Procedural)
Example:

class Dog:
   def __init__(self, name):
       self.name = name
   def bark(self):
       print(self.name + " says Woof!")

d = Dog("Buddy")
d.bark()
 

6. Automatic Memory Management
• No need for manual memory handling like malloc or free.
Example:

data = [1, 2, 3] 

del data  # Python cleans memory automatically

 

7. Extensible and Embeddable
• Python can be combined with C, C++, or Java.

 

8. Parallel Execution (Multiprocessing / Threading)
Example:

from multiprocessing import Process

def task():
   print("Running in parallel!")

p = Process(target=task)
p.start()
p.join()
 

9. Strong Community
• Supported by forums like Stack Overflow, GitHub, and Python.org.
• Easy to find tutorials and documentation.

 

10. Open Source and Free
• No license fees.
• Free for both personal and commercial use.