Python is primarily implemented in the C programming language. The CPython interpreter, which is the most widely used implementation of Python, is written in C. CPython is the reference implementation of Python and is used by default when you download Python from the official Python website.
Python’s standard library, which provides a wide range of modules and functions for various tasks, is also written in Python and C. While Python code is used for most of the standard library, certain performance-critical parts are implemented in C to ensure efficient execution.
It’s important to note that there are alternative implementations of Python, such as Jython (Python for Java), IronPython (Python for .NET), and PyPy (a Just-In-Time compiler for Python). These implementations may use different programming languages in their underlying implementations, but the most common and widely used one, CPython, is implemented in C.
