Python glmnet“没有名为_glmnet的模块"

问题描述

更新.现在，我在 .pyf 文件上运行 f2py ，该文件应生成 _glmnet 模块.

UPDATE Getting close. Now I'm running f2py on the .pyf file that should generate the _glmnet module.

我使用以下命令构建包 python-glmnet 数据包.

I build the package python-glmnet packet with the following command.

python setup.py config_fc --fcompiler=gnu95
                                           --f77flags='-fdefault-real-8'
                                          --f90flags='-fdefault-real-8' build

但是当我导入模块时，出现此错误:

But when I import the module I get this error:

如何导入该模块?

glmnet目录还包含一个以以下内容开头的 glmnet.pyf 文件:

The glmnet directory also contains a glmnet.pyf file that begins with the following:

!    -*- f90 -*-
! Note: the context of this file is case sensitive.

python module _glmnet ! in
    interface  ! in :_glmnet
        subroutine elnet(ka,parm,no,ni,x,y,w,jd,vp,ne,nx,nlam,flmin,ulam,thr,isd,lmu,a0,ca,ia,nin,rsq,alm,nlp,jerr) ! in :glmnet:glmnet.f
            integer optional :: ka=1 ! Use covariance updates over naive by default
            real*8 :: parm
            integer intent(hide),check(shape(x,0)==no),depend(x) :: no=shape(x,0)
            integer intent(hide),check(shape(x,1)==ni),depend(x) :: ni=shape(x,1)
            real*8 dimension(no,ni) :: x
            real*8 dimension(no),depend(no) :: y
            real*8 dimension(no),depend(no) :: w
            integer dimension(*) :: jd
            real*8 dimension(ni),depend(ni) :: vp
            integer optional,depend(x) :: ne=min(shape(x,1), nx)
            integer :: nx
            integer optional,check((flmin < 1.0 || len(ulam)==nlam)),depend(flmin,ulam) :: nlam=len(ulam)
            real*8 :: flmin
            real*8 dimension(nlam) :: ulam
            real*8 :: thr
            integer optional :: isd=1 ! Standardize predictors by default

更新

在哪里可以找到此 _glmnet 模块?如下所示，它是否包含在glmnet.pyf文件中?我尝试将此glment文件夹添加到我的 PYTHONPATH 中，但这没有任何改变.

Where can I find this _glmnet module? Is it contained in the glmnet.pyf file, as shown below? I tried adding this glment folder to my PYTHONPATH, but that didn't change anything.

~/221/tagger/tagger/glmnet master ls
__init__.py                  example_lasso_elastic_net.py glmnet.pyc
__init__.pyc                 glmnet.f                     glmnet.pyf
elastic_net.py               glmnet.py
~/221/tagger/tagger/glmnet master head -10 glmnet.pyf
!    -*- f90 -*-
! Note: the context of this file is case sensitive.

python module _glmnet ! in
    interface  ! in :_glmnet
        subroutine elnet(ka,parm,no,ni,x,y,w,jd,vp,ne,nx,nlam,flmin,ulam,thr,isd,lmu,a0,ca,ia,nin,rsq,alm,nlp,jerr) ! in :glmnet:glmnet.f
            integer optional :: ka=1 ! Use covariance updates over naive by default
            real*8 :: parm
            integer intent(hide),check(shape(x,0)==no),depend(x) :: no=shape(x,0)
            integer intent(hide),check(shape(x,1)==ni),depend(x) :: ni=shape(x,1)
~/221/tagger/tagger/glmnet master echo $PYTHONPATH
/Users/rose/221/tagger/tagger/glmnet:
~/221/tagger/tagger/glmnet master cd ..
~/221/tagger/tagger master python main.py
Traceback (most recent call last):
  File "main.py", line 14, in <module>
    from glmnet import glmnet
  File "/Users/rose/221/tagger/tagger/glmnet/glmnet.py", line 2, in <module>
    import _glmnet
ImportError: No module named _glmnet

推荐答案

据我所知，它正在寻找 _gmlnet 模块，该模块在 gmlnet中定义.pyf . gmlnet.pyf 不是python模块，它是用于名为 f2py 的程序的一组附加说明，而python将忽略 .pyf 文件.您需要使用 f2py 编译 .pyf 文件以及fortran文件.使用如下命令:

As far as I can tell from the source, it's looking for the _gmlnet module, which is defined in gmlnet.pyf. gmlnet.pyf is not a python module, it's a set of additional instructions for a program called f2py, and python will ignore the .pyf file. You need to compile the .pyf file along with a fortran file using f2py. Use a command like this:

f2py -c --fcompiler=gnu95 gmlnet.pyf gmlnet.f

尝试安装 f2py ，然后重新安装 gmlnet 软件包.

Try installing f2py and then reinstalling the gmlnet package.

这篇关于Python glmnet“没有名为_glmnet的模块"的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！