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I don't follow Python closely. So why PyPy isn't adopted?

• dagw 2y ago
  The biggest reasons is that it isn't compatible with the python C API. So any library that uses the C API would have to be rewritten.
  • tekknolagi 2y ago
    They have gotten much better about that recently and it's much much more compatible now.
• v3ss0n 2y ago
  The main reason GVR said is "May be this is future of Python , but not now" . At that time pypy was already stable at 2.7.x version but python 2-3 split happen. PyPy team have to rewrite everything for Python3 and took them a while to catchup. I had managed to talk with one ex pypy developer that the main reason GVR and Python community do not promote much about PyPy is due to NIH - Not invented here - Since PyPy is developed by seperate but full time computer scientist and researchers, PHDs , not by the Guido community . https://pypy.org/people.html https://pypy.org/people.html One problem about popularity of pypy is they don't do any advertisement , promotion which I had critically voiced about it in their community - they moved to Github finally. Only other problem is CPython Ext , which is compatible but a little bit slower than CPython - that only pain point we have - which could be solved if there are more contributors and users using pypy. Actually Python , written in Python should be the main