Introduction to Python

Python is a high-level, interpreted, and general-purpose programming language.

22 January 2023

Introduction to Python

Python is a high-level, interpreted, and general-purpose programming language. It was created by Guido van Rossum in the late 1980s and is now one of the most widely-used programming languages in the world. Python is known for its simplicity and ease of use, making it a great language for beginners to learn.

One of the most popular uses of Python is in data science and machine learning. The Python ecosystem is rich with powerful libraries such as NumPy, pandas, and scikit-learn, which provide tools for data manipulation, analysis, and modeling.

Another popular use of Python is in web development. The Flask and Django frameworks make it easy to create web applications and APIs.

Here are a few examples of basic programs in Python:

Example 1: Hello World!

print("Hello, World!")

This simple program just prints “Hello, World!” to the console.

Example 2: Basic Calculator

num1 = input("Enter a number: ")
num2 = input("Enter another number: ")
result = float(num1) + float(num2)
print("The sum of", num1, "and", num2, "is", result)

This program takes input from the user, converts it to a float, performs addition and then prints the result.

Example 3: Fibonacci Sequence

def fibonacci(n):
    if n <= 0:
        return 0
    elif n == 1:
        return 1
    else:
        return fibonacci(n-1) + fibonacci(n-2)

n = int(input("Enter the number of terms: "))

for i in range(n):
    print(fibonacci(i))

This program uses recursion to generate the Fibonacci sequence up to the number of terms entered by the user.

These are just a few examples of the many things that you can do with Python. With its wide range of libraries and frameworks, Python is a versatile language that can be used for a variety of tasks. Whether you’re a beginner or an experienced programmer, Python is a great choice for your next project.

Please keep in mind that these examples are very basic and only meant to give a quick overview of Python. The real power of Python comes from its vast library ecosystem and its ability to be used in various domains.