Introduction to Python
What is Python?
Python is a high-level, interpreted programming language known for its simplicity and readability. It was created by Guido van Rossum and was first released in 1991. Python supports multiple programming paradigms, including procedural, object-oriented, and functional programming.
Key Features of Python:
- Easy to Learn: Python has a simple syntax which is easy to read and write, making it an ideal choice for beginners.
- Extensive Libraries: Python comes with a vast standard library and community-contributed packages for diverse fields like web development, data analysis, and machine learning.
- Cross-Platform: Python is available for all major operating systems, such as Windows, macOS, and Linux.
- Dynamic Typing: Python dynamically determines the data type of variables during runtime.
- Open Source: Python is free to use and has a strong, active community.
Installing Python
To install Python:
- Visit python.org and download the latest version for your operating system.
- During installation, ensure that the option “Add Python to PATH” is selected.
Verify the installation by opening a terminal or command prompt and typing:
python --version
Running Python Code
You can run Python code in two modes:
- Interactive Mode: Open the Python shell by typing python in the terminal.
- Script Mode: Write Python code in a .py file and execute it using the command python filename.py.
Example: Hello World
# A simple Python program print("Hello, World!")
Output:
Hello, World!