Python has many active implementations. We will be addressing its different implementations and know which is the fastest implementation.
Different implementations of Python −
IronPython − This is the Python implementation which runs on .NET framework. This implementation is written in C#. It uses .net virtual machine for running. IronPython can use the python libraries and .net framework libraries.
Jython − Jython is the implementation of Python which runs on the Java Platform. The jython makes use of the java classes and libraries. The jython
code is compiled into java byte code and it is run on Java Virtual Machine.
PyPy − This is the implementation of Python written in Python language. Pypy makes use of JIT(Just-In-Time compilation).
Cpython − This is the implementation of Python written in C language. It runs on Cpython Virtual Machine. The Cpython converts the source code into intermediate byte code.
There are certain other implementations of Python which include CLPython, Pyston,Cython, IPython.
The fastest implementation of python is pypy. As mentioned above, pypy uses justin-time compilation. The JIT compilation makes pypy faster than the other implementations. JIT compilation lets the source code to be compiled into native machine code which makes it very fast.