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1. • Highly compatible

     • PyPy is an alternative Python interpreter and just-in-time (JIT) compiler that is highly compatible (subject to a few caveats) with the CPython interpreter. It is designed for speed and efficiency and uses a tracing JIT compiler to optimize frequently executed parts of the program at runtime, thus increasing the execution speed.
     www.cardinalpeak.com/blog/faster-python-with-cython-and-pypy-part-2

     Increasing Speed: Cython vs CPython vs Python & Pypy

2. doc.pypy.org › en › latestDifferences between PyPy and CPython

   doc.pypy.org › en › latest

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   This page documents the few differences and incompatibilities between the PyPy Python interpreter and CPython. Some of these differences are “by design”, since we think that there are cases in which the behaviour of CPython is buggy, and we do not want to copy bugs.

   • Pypy's Ctypes Implementation

     PyPy’s implementation internally uses libffi like CPython’s...

   • Contributors

     What is PyPy? Goals and Architecture Overview; Downloading...

   • Changelogs

     CPython 3.6 compatible versions¶. What’s new in PyPy3 7.3.3;...

   • Glossary

     Glossary¶ application level applevel code is normal Python...

   • Pypy's Release Process

     add a tag on the pypy/jitviewer repo that corresponds to...

   • Potential Project List

     Run benchmarks, either provided by the extension developers...

   • JIT Hooks

     JIT hooks¶. There are several hooks in the pypyjit module...

   • Pypy's Configuration Handling

     Description of Options¶. All the constructors take a name...

3. stackoverflow.com › questions › 2591879python - PyPy -- How can it possibly beat CPython? - Stack ...

   stackoverflow.com › questions › 2591879

   PyPy is written in Restricted Python. It does not run on top of the CPython interpreter, as far as I know. Restricted Python is a subset of the Python language. AFAIK, the PyPy interpreter is compiled to machine code, so when installed it does not utilize a python interpreter at runtime.

4. Videos

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     Alternative Python Implementations: CPython, Jython, IronPython & PyPy - Fully Explained

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     Compile Python to C | cython, pypy,numba | python tutorials

     Sep 12, 2019

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     #12 PyPy vs Python | Timeit Python | pypy python 3 | how to install PyPy

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5. doc.pypy.org › en › latestFrequently Asked Questions — PyPy documentation

   doc.pypy.org › en › latest

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   3 days ago · A module installed for CPython is not automatically available for PyPy — just like a module installed for CPython 3.6 is not automatically available for CPython 3.7 if you installed both. In other words, you need to install the module xyz specifically for PyPy.

6. pypy.org › compatPython compatibility - PyPy

   pypy.org › compat

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   The goal of this page is to point out some of the differences between running python with PyPy and with CPython. TL;DR¶ Pure python code works, but there are a few differences with object lifetime management. Modules that use the CPython C API will probably work, but will not achieve a

7. en.wikipedia.org › wiki › PyPyPyPy - Wikipedia

   en.wikipedia.org › wiki › PyPy

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   Most Python code runs well on PyPy except for code that depends on CPython extensions, which either does not work or incurs some overhead when run in PyPy.

8. pypy.orgPyPy

   pypy.org

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   Compatibility: PyPy is highly compatible with existing python code. It supports cffi, cppyy, and can run popular python libraries like twisted, and django. It can also run NumPy, Scikit-learn and more via a c-extension compatibility layer. Stackless: PyPy comes by default with support for stackless mode, providing micro-threads for massive ...

9. People also ask

   Does PyPy run on CPython?

   • PyPy is written in Restricted Python. It does not run on top of the CPython interpreter, as far as I know. Restricted Python is a subset of the Python language. AFAIK, the PyPy interpreter is compiled to machine code, so when installed it does not utilize a python interpreter at runtime.

   PyPy -- How can it possibly beat CPython? - Stack Overflow

   stackoverflow.com/questions/2591879/pypy-how-can-it-possibly-beat-cpython

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   Does PyPy run faster than CPython?

   • PyPy (/ ˈpaɪpaɪ /) is an implementation of the Python programming language. PyPy often runs faster than the standard implementation CPython because PyPy uses a just-in-time compiler. Most Python code runs well on PyPy except for code that depends on CPython extensions, which either does not work or incurs some overhead when run in PyPy.

   PyPy - Wikipedia

   en.wikipedia.org/wiki/PyPy

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   What is the difference between IronPython & PyPy?

   • Jython compiles your Python code to Java bytecode, so your Python code can run on the JVM. IronPython lets you run Python on the Microsoft CLR. And PyPy, being implemented in (a subset of) Python, lets you run Python code faster than CPython, which rightly should blow your mind.

   Python vs Cpython - Stack Overflow

   stackoverflow.com/questions/17130975/python-vs-cpython

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   Can I use CPython C API with PyPy?

   • Modules that use the CPython C API will probably work, but will not achieve a speedup via the JIT. We encourage library authors to use CFFI and HPy instead. If you are looking for how to use PyPy with the scientific python ecosystem, we encourage you to use conda, since they repackage common libraries like scikit-learn and SciPy for PyPy.

   Python compatibility - PyPy

   pypy.org/compat.html

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   Is iron Python better than CPython?

   • IronPython lets you run Python on the Microsoft CLR. And PyPy, being implemented in (a subset of) Python, lets you run Python code faster than CPython, which rightly should blow your mind. :-)

   Python vs Cpython - Stack Overflow

   stackoverflow.com/questions/17130975/python-vs-cpython

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   What is the difference between CPython and PyPy?

   • The above is true both in CPython and in PyPy. Differences can occur about whether a built-in function or method will call an overridden method of another object than self. In PyPy, they are often called in cases where CPython would not. Two examples: Consider the following snippet of code:

   Differences between PyPy and CPython — PyPy documentation

   doc.pypy.org/en/latest/cpython_differences.html

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10. www.infoworld.com › article › 2259928What is PyPy? Faster Python without pain - InfoWorld

    www.infoworld.com › article › 2259928

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    Aug 2, 2023 · PyPy is a drop-in replacement for the stock Python interpreter, CPython. Whereas CPython compiles Python to intermediate bytecode that is then interpreted by a virtual machine, PyPy uses...