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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 · PyPy being "as fast as C" is more about generic C than highly optimized multithreaded cache-aware C libraries used for numerics. For numerics, Python is just used to ferry around pointers to big arrays. So PyPy being "as fast as C" means "your pointers+metadata get moved around as fast as C".

2. www.reddit.com › r › PythonDoes anyone actually use PyPy or Cython? : r/Python - Reddit

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   As far as I know, PyPy is not ideal because of its lack of package support, but Cython seems pretty neat. FYI these two things aren’t really comparable. PyPy is a runtime, basically an alternative to the “standard” python interpreter (aka cpython) most people would have installed by default.

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4. www.reddit.com › r › learnprogrammingHow is PyPy more performant than CPython? Shouldn't ... - Reddit

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   PyPy can run faster than cpython because the pypy JiT compiler compiles to native code for a specific processor. CPython does not compile to native code. It compiles to bytecode which is then translated to native instructions.

5. www.reddit.com › y97qc5 › python_cpython_vs_pypyPython — CPython vs PyPy : r/linux - Reddit

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   Based on different benchmarks done by the PyPy team it seems that it is 4.7X faster than CPython (https://speed.pypy.org/). The crazy thing about it is that you don’t need to rewrite the code. The only thing that needs to be done is to replace CPython with PyPy.

6. cloudbytes.dev › snippets › which-pythonWhich Python Implementation you should use (Cpython, PyPy, etc.)?

   cloudbytes.dev › snippets › which-python

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   Dec 12, 2021 · PyPy's main utility is that it is really fast, in fact, it claims to be almost 5x faster than CPython. However, PyPy can run most Python code except for when the code depends on CPython extensions which results in either inability to run or significant loss of performance.

7. stackoverflow.com › questions › 59050724python 3.x - what's the differences python3 and pypy3 - Stack ...

   stackoverflow.com › questions › 59050724

   Jun 11, 2020 · PyPy aims for maximum compatibility with the reference CPython implementation while improving performance. If you are looking to increase performance of your Python code, it’s worth giving PyPy a try. On a suite of benchmarks, it’s currently over 5 times faster than CPython. PyPy supports Python 2.7. PyPy3, released in beta, targets Python 3.

8. People also ask

   Is PyPy faster than CPython?

   • They claim it is 6.3 times faster than the CPython interpreter on their site. Whenever we talk about dynamic languages like Python, speed is one of the top issues. To solve this, they say PyPy is 6.3 times faster. The second issue is parallelism, the infamous Global Interpreter Lock (GIL). For this, PyPy says it can give GIL-less Python.

   python - Why shouldn't I use PyPy over CPython if PyPy is 6.3 times

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

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   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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   Will PyPy run all Python code faster?

   • The statement is about an average of a group of benchmarks. There is no claim that running PyPy will give a 6.3 times improvement even for the programs they have tested. There is no claim that PyPy will even run all the programs that CPython runs at all, let alone faster. Of course there is no claim that PyPy will run all Python code faster.

   python - Why shouldn't I use PyPy over CPython if PyPy is 6.3 times

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

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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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   Why do people prefer PyPy over CPython?

   • Because PyPy is a JIT compiler its main advantages come from long run times and simple types (such as numbers). PyPy's pre-JIT speeds can be bad compared to CPython. Inertia. Moving to PyPy often requires retooling, which for some people and organizations is simply too much work. Those are the main reasons that affect me, I'd say.

   python - Why shouldn't I use PyPy over CPython if PyPy is 6.3 times

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

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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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9. www.bitecode.dev › p › whats-the-deal-with-cpython-pypyWhat's the deal with CPython, Pypy, MicroPython, Jython...?

   www.bitecode.dev › p › whats-the-deal-with-cpython-pypy

   Jun 27, 2023 · Pypy is the most famous CPython alternative. It's Python written... in Python. Well, in RPython, a subset of the language. Its main feature is to be faster than CPython, mainly thanks to Just-in-time compilation. It is slower to start than CPython, but if it runs for long enough, it will become faster and faster.