是否可以在pypy（3.8）下安裝scipy（1.8.0）？

Question

我只是嘗試在pypy（3.8版）下安裝package scipy==1.8.0。

pip install scipy==1.8.0

首先，scipy 安裝過程失敗，出現以下警告和錯誤：

Building wheels for collected packages: scipy
  Building wheel for scipy (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Building wheel for scipy (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [1198 lines of output]



WARN: Could not locate executable armflang
WARN: Could not locate executable gfortran
WARN: Could not locate executable f95
WARN: Could not locate executable ifort
WARN: Could not locate executable ifc
WARN: Could not locate executable lf95
WARN: Could not locate executable pgfortran
WARN: Could not locate executable nvfortran
WARN: Could not locate executable f90
WARN: Could not locate executable f77
WARN: Could not locate executable fort
WARN: Could not locate executable efort
WARN: Could not locate executable efc
WARN: Could not locate executable g77
WARN: Could not locate executable g95
WARN: Could not locate executable pathf95
WARN: Could not locate executable nagfor
WARN: Could not locate executable frt
WARN: don't know how to compile Fortran code on platform 'posix'


error: library mach has Fortran sources but no Fortran compiler found

其次，我使用以下代碼安裝了 gfortan：

sudo apt-get install gfortran

然后 scipy 安裝過程失敗，出現以下錯誤：

compilation terminated.
  INFO: gcc: scipy/special/cephes/beta.c
  In file included from scipy/special/cephes/bdtr.c:149:
  scipy/special/cephes/mconf.h:56:10: fatal error: Python.h: No such file or directory
   #include <Python.h>
            ^~~~~~~~~~
  compilation terminated.
  INFO: gcc: scipy/special/cephes/btdtr.c
  INFO: gcc: scipy/special/cephes/cbrt.c
  INFO: gcc: scipy/special/cephes/chbevl.c
  In file included from scipy/special/cephes/beta.c:49:
  scipy/special/cephes/mconf.h:56:10: fatal error: Python.h: No such file or directory
   #include <Python.h>
            ^~~~~~~~~~
  compilation terminated.
  In file included from scipy/special/cephes/besselpoly.c:1:
  scipy/special/cephes/mconf.h:56:10: fatal error: Python.h: No such file or directory
   #include <Python.h>
            ^~~~~~~~~~
  compilation terminated.
  INFO: gcc: scipy/special/cephes/chdtr.c
  In file included from scipy/special/cephes/btdtr.c:53:
  scipy/special/cephes/mconf.h:56:10: fatal error: Python.h: No such file or directory
   #include <Python.h>
            ^~~~~~~~~~
  compilation terminated.
  INFO: gcc: scipy/special/cephes/const.c
  INFO: gcc: scipy/special/cephes/dawsn.c
  In file included from scipy/special/cephes/chbevl.c:60:
  scipy/special/cephes/mconf.h:56:10: fatal error: Python.h: No such file or directory
   #include <Python.h>


ERROR: Failed building wheel for scipy
Failed to build scipy
ERROR: Could not build wheels for scipy, which is required to install pyproject.toml-based projects

我也試過：

• 升級 pip，安裝工具和輪子
• scipy 的一些其他版本（1.9.0、,1.7.0、1.6.0）。

我想知道這個問題是否有解決方案，以及 scipy 是否與 pypy 兼容。

Answer 1

我強烈建議使用可通過conda-forge獲得的預編譯二進制文件。 編譯 scipy 並非易事。 也許有一天pip install --only-binary:all:將支持 PyPy，看這個問題

Answer 2

感謝你的回復。

我只是按照這些步驟操作，問題就解決了。

sudo apt install libblas3 liblapack3 liblapack-dev libblas-dev

sudo apt install gfortran

pip install --extra-index-url https://antocuni.github.io/pypy-wheels/manylinux2010 scipy==1.8.0