python-3.x - 无法使用 pypy 安装 scipy(g++ 构建错误)

Question

到 2020 年，可以使用 pypy 安装 scipy。 ( Is it possible to install scipy under pypy? )

pypy3 -mpip install scipy

但是，轮子因此类错误而失败:

  error: Command "g++ -pthread -DNDEBUG -O2 -fPIC -I/tmp/pip-build-env-lfdsn__t/overlay/site-packages/numpy/core/include -I/usr/lib/pypy3/include -c scipy/_lib/_uarray/_uarray_dispatch.cxx -o build/temp.linux-x86_64-3.6/scipy/_lib/_uarray/_uarray_dispatch.o -MMD -MF build/temp.linux-x86_64-3.6/scipy/_lib/_uarray/_uarray_dispatch.o.d -std=c++14 -fvisibility=hidden" failed with exit status 1


  ERROR: Failed building wheel for scipy

无法构建 scipy
错误:无法为使用 PEP 517 且无法直接安装的 scipy 构建轮子

使用 --no-use-pep517 选项给出类似的结果:

    error: Command "g++ -pthread -DNDEBUG -O2 -fPIC -I/home/ezako/.local/lib/pypy3.6/site-packages/numpy/core/include -I/usr/lib/pypy3/include -c scipy/_lib/_uarray/_uarray_dispatch.cxx -o build/temp.linux-x86_64-3.6/scipy/_lib/_uarray/_uarray_dispatch.o -MMD -MF build/temp.linux-x86_64-3.6/scipy/_lib/_uarray/_uarray_dispatch.o.d -std=c++14 -fvisibility=hidden" failed with exit status 1 
ERROR: Command errored out with exit status 1: /usr/bin/pypy3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-2ffzze2v/scipy/setup.py'"'"'; __file__='"'"'/tmp/pip-install-2ffzze2v/scipy/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-8avik0f1/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /home/ezako/.local/include/python3.6/scipy Check the logs for full command output.

Numpy 已成功与 pypy3 一起安装。

➜ pypy3 -V
Python 3.6.9 (7.3.0+dfsg-1~ppa1~ubuntu19.04, Dec 26 2019, 11:14:16)
[PyPy 7.3.0 with GCC 8.3.0]

Answer 1

这对我有用。我打开了 latest nightly

pypy -mensurepip
pypy -mpip install --upgrade pip setuptools wheel
pypy -mpip install numpy pybind11
pypy -mpip install scipy

显然，您需要单独安装 pybind11，因为它在 PEP 517 独立版本中无法正常工作。