What is Python and what are its key features?

Python is a high-level, interpreted, general-purpose programming language with a focus on code readability and simple syntax.

Key features:

• Interpreted: code is executed line by line by the interpreter, without the need for compilation.
• Dynamic typing: variable types are determined automatically at runtime, not at declaration.
• Automatic memory management: a built-in Garbage Collector frees unused memory.
• Cross-platform: code runs on Windows, macOS, and Linux without modifications.
• Multi-paradigm: supports object-oriented, functional, and procedural programming styles.
• Extensive standard library: modules for working with files, networking, JSON, and much more.

Where it's used:

• Web development: Django, Flask, FastAPI.
• Data analysis and ML: NumPy, Pandas, scikit-learn.
• Automation and scripting: file processing, DevOps, testing.