有什么方法可以用 PyPy 安装 Pandas？

Question

我正在尝试使用 PyPy 运行一些代码以加快速度。我的代码使用 Pandas 数据框，所以我正在尝试找到一种安装包的方法...

不幸的是，我找不到这样做的方法...在网上搜索会得到 this 和 this -- 两个令人失望的结果表明这是不可能的，但它们是 1-2 岁的！

this twitter post from Romain Guillebert 带来了一线希望，这表明我可以使用名为 pymetabiosis 的包来做到这一点。不幸的是，当我去安装它时，我收到了下面提到的错误。

知道如何调试错误或找到其他将 Pandas 与 PyPy 结合使用的方法？**

---

安装 pymetabiosis 时出现错误消息：

Collecting pymetabiosis
  Using cached pymetabiosis-0.0.1.tar.gz
    Complete output from command python setup.py egg_info:
    pymetabiosis/__pycache__/_cffi__x771a6f66x197b9d2b.c:219:13: warning: initializing 'char **' with an expression of type 'const char **' discards qualifiers in nested pointer types [-Wincompatible-pointer-types-discards-qualifiers]
      { char * *tmp = &p->ml_name; (void)tmp; }
                ^     ~~~~~~~~~~~
    pymetabiosis/__pycache__/_cffi__x771a6f66x197b9d2b.c:220:13: warning: incompatible pointer types initializing 'void **' with an expression of type 'PyCFunction *' (aka 'struct _object *(**)(struct _object *, struct _object *)') [-Wincompatible-pointer-types]
      { void * *tmp = &p->ml_meth; (void)tmp; }
                ^     ~~~~~~~~~~~
    pymetabiosis/__pycache__/_cffi__x771a6f66x197b9d2b.c:222:13: warning: initializing 'char **' with an expression of type 'const char **' discards qualifiers in nested pointer types [-Wincompatible-pointer-types-discards-qualifiers]
      { char * *tmp = &p->ml_doc; (void)tmp; }
                ^     ~~~~~~~~~~
    pymetabiosis/__pycache__/_cffi__x771a6f66x197b9d2b.c:1189:30: warning: incompatible pointer types passing 'PyObject *' (aka 'struct _object *') to parameter of type 'PyCodeObject *' [-Wincompatible-pointer-types]
      { result = PyEval_EvalCode(x0, x1, x2); }
                                 ^~
    //anaconda/include/python2.7/eval.h:10:54: note: passing argument to parameter here
    PyAPI_FUNC(PyObject *) PyEval_EvalCode(PyCodeObject *, PyObject *, PyObject *);
                                                         ^
    pymetabiosis/__pycache__/_cffi__x771a6f66x197b9d2b.c:1857:12: warning: incompatible integer to pointer conversion assigning to 'PyObject *' (aka 'struct _object *') from 'int' [-Wint-conversion]
      { result = PyObject_SetAttr(x0, x1, x2); }
               ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    pymetabiosis/__pycache__/_cffi__x771a6f66x197b9d2b.c:2164:5: warning: incompatible pointer types assigning to 'PyObject *(*)(size_t, ...)' (aka 'struct _object *(*)(unsigned long, ...)') from 'PyObject *(Py_ssize_t, ...)' (aka 'struct _object *(long, ...)') [-Wincompatible-pointer-types]
      i = (PyTuple_Pack);
        ^ ~~~~~~~~~~~~~~
    6 warnings generated.
    ld: warning: directory not found for option '-L//anaconda/lib
    '
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "/private/var/folders/t4/n42mh55n05sd6s5hgk1dzdz80000gp/T/pip-build-fSTXPd/pymetabiosis/setup.py", line 2, in <module>
        from pymetabiosis.bindings import ffi
      File "pymetabiosis/__init__.py", line 1, in <module>
        from pymetabiosis.module import import_module
      File "pymetabiosis/module.py", line 2, in <module>
        from pymetabiosis.wrapper import MetabiosisWrapper
      File "pymetabiosis/wrapper.py", line 3, in <module>
        from __pypy__ import identity_dict
    ImportError: No module named __pypy__

    ----------------------------------------
Command "python setup.py egg_info" failed with error code -11 in /private/var/folders/t4/n42mh55n05sd6s5hgk1dzdz80000gp/T/pip-build-fSTXPd/pymetabiosis/

Answer 1

pypy v5.9 已开始支持 pandas（和 numpy）

Answer 2

这是我所做的，假设您使用的是 Conda，但 Pip/Venv 也应该可以工作

创建一个新的 conda 环境

conda create --name pypy_env
conda activate pypy_env

使用 conda 安装 pypy3

conda install pypy3

使用这里的方法Install pip on pypy获取pypy3的Pip

使用 pypy 安装包

pypy3 -m pip install pandas