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Python Flavours - CPython, Cython, Jython, IronPython, PyPy Differences


In this post, Let's understand the different implementations of Python available. Python Flavours -

  • CPython
  • Cython
  • Jython
  • IronPython
  • PyPy
Also let's explore the Differences between all these flavours.

1.  CPython:

This is the Original & Default Python implementation available in www.Python.org. A Python flavour that most of us use one a day to day basis. It is the Original Python Implementation . Note CPython does not translate your Python code to C . Instead it compiles any Python code into bytecode and that bytecode is then interpreted through an evaluation process. So to simplify the most commonly used Python-the-language is developed and interpreted using CPython as the base. So one side , you have this implementation of python - and the other flavours of python (discussed later).  

2. Cython:

A Superset of Python that translates and compiles a python code to C . Thereby providing Python the Speed of C Programming. Cython adds a few extensions to the Python language, and lets you compile your code to C extensions. It also additionally supports calling C/C++ functions. Cython is a compiled language that is typically used to generate C extensions for Python.  

3. Jython

Jython compiles Python code into Java bytecode - so you that you can run your Python code on the Java Platform or JVM. Jython was formerly known as Jpython. With Jython, it is possible to call Java Class Library functions from Python itself. And also to call Python functions from Java.  

4. Iron Python:

This flavour of Python is written in C# so you can run python on Microsoft’s .NET framework. IronPython compiles the code to Common Language Runtime (CLR). Using IronPython flavour , you can use .NET Framework libraries in Python code. And Python code in .NET languages.  

5. PyPy:

The default python(CPython) is normally slow as it compiles into bytecode(which are slower than machine native code). To fill this gap ,PyPy is used. PyPy is an implementation of the Python programming language written in Python. The Interpreter is written in RPython (Restricted Python - a subset of Python). PyPy uses JIT or Just-in-time compilation approach to compile the source code into native machine code. Thereby making the code to run much faster. (PyPy is compiler while CPython is just an interpreter)  

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