Python is a programming language where we have some set of rules to follow like syntax rules.
Like, if we execute a string like 'import some_package_name' to that program called interpreter, it will return you something like "Zen of Python".
As most of the operating systems are written in C, compilers or interpreters for modern high-level languages are also written in C.
Thus, we can say that Python is implemented in C, also known as CPython.
If you want to know more about Python, then do refer to the Python certification course.