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1. stackoverflow.com › questions › 18946662Why shouldn't I use PyPy over CPython if PyPy is 6.3 times ...

   stackoverflow.com › questions › 18946662

   Sep 23, 2013 · If PyPy succeeds to be better than CPython in general, which is questionable, the main weakness affecting its wider adoption will be its compatibility with CPython. There also exist issues such as the fact that CPython runs on a wider range of CPUs and OSes, but these issues are much less important compared to PyPy's performance and CPython-compatibility goals.

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

   doc.pypy.org › en › latest

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   On CPython 2.6 and 2.7 it works in a bit more cases, which are not supported by PyPy so far. (If needed, it could be supported, but then it will likely work in many more case on PyPy than on CPython 2.6/2.7.) In PyPy 3, __class__ attribute assignment between heaptypes and non heaptypes.

3. pypy.org › compatPython compatibility - PyPy

   pypy.org › compat

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   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.

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

   doc.pypy.org › en › latest

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   2 days ago · Yes, PyPy has a GIL. Removing the GIL is very hard. On top of CPython, you have two problems: (1) GC, in this case reference counting; (2) the whole Python language. For PyPy, the hard issue is (2): by that I mean issues like what occurs if a mutable object is changed from one thread and read from another concurrently.

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

   en.wikipedia.org › wiki › PyPy

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   PyPy (/ ˈ p aɪ p aɪ /) is an implementation of the Python programming language. [2] PyPy often runs faster than the standard implementation CPython because PyPy uses a just-in-time compiler. [3] 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 ...

6. python.plainenglish.io › cpython-vs-pypy-7443aa12879dCPython vs PyPy - Python in Plain English

   python.plainenglish.io › cpython-vs-pypy-7443aa12879d

   Mar 16, 2024 · Compatibility: CPython offers broad compatibility with Python libraries and C extensions, making it a safe choice for most projects. PyPy has made great strides in compatibility but may still encounter issues with some C extensions. Development Focus: CPython focuses on stability, readability, and compatibility.

7. 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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   Why is PyPy not compatible with CPython?

   • A: PyPy isn't 100% compatible with CPython because it isn't simulating CPython under the hood. Some programs may still depend on CPython's unique features that are absent in PyPy such as C bindings, C implementations of Python object&methods, or the incremental nature of CPython's garbage collector.

   Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?

   stackoverflow.com/questions/18946662/why-shouldnt-i-use-pypy-over-cpython-if-pypy-is-6-3-times-faster

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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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   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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   Does PyPy support Python 3?

   • PyPy does not yet fully support Python 3.x, although that is an active work item. PyPy is a great project, but runtime speed on CPU-intensive tasks isn't everything, and in many applications it's the least of many concerns.

   Why wasn't PyPy included in standard Python? - Stack Overflow

   stackoverflow.com/questions/12867263/why-wasnt-pypy-included-in-standard-python

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   Does PyPy support C extensions?

   • PyPy, as others have been quick to mention, has tenuous support for C extensions. It has support, but typically at slower-than-Python speeds and it's iffy at best. Hence a lot of modules simply require CPython.

   Why shouldn't I use PyPy over CPython if PyPy is 6.3 times faster?

   stackoverflow.com/questions/18946662/why-shouldnt-i-use-pypy-over-cpython-if-pypy-is-6-3-times-faster

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8. medium.com › @boutnaru › python-cpython-vs-pypy-c2cePython — CPython vs PyPy. The most used reference ... - Medium

   medium.com › @boutnaru › python-cpython-vs-pypy-c2ce

   Sep 19, 2022 · The only thing that needs to be done is to replace CPython with PyPy. It is important to know that PyPy supports most of the tools that are part of the “Python Echosystems”. Examples for that ...