在python中调用fortran代码,要用到f2py这个程序。它的项目主页在此。现在该项目已经合并到numpy中了,先安装python再装好numpy,就可以使用f2py。不过对windows平台必须使用gnu的fortran编译器gfortran,在此下载。装完了python,numpy和gfortran这三样东西之后,还必须更改如下几个环境变量:
1.在$PATH中添加gfortran的路径,我的是c:\Program Files\pythonxy\mingw\bin\
2.在$PATH中添加python的路径,我的是c:\Python26\
3.新建环境变量C_INCLUDE_PATH,添加gfortran头文件的路径,我的是c:\Program Files\pythonxy\mingw\include\
好啦现在f2py就可以用了。新建fortran程序foo.f90如下
foo.f90
subroutine hello (a)
integer a
write(*,*)'Hello from Fortran90!!!',a
end subroutine hello
编译
f2py -m foo -c foo.f90
运行
$ python
Python 2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import foo
>>> foo.hello(15)
Hello from Fortran90!!! 15
另外附上f2py支持的数据类型有
integer[ | *1 | *2 | *4 | *8 ], logical[ | *1 | *2 | *4 | *8 ]
integer*([ -1 | -2 | -4 | -8 ])
character[ | *(*) | *1 | *2 | *3 | ... ]
real[ | *4 | *8 | *16 ], double precision
complex[ | *8 | *16 | *32 ]
<dim> | <start>:<end> | * | :
intent([ in | inout | out | hide | in,out | inout,out | c |
copy | cache | callback | inplace | aux ])
dimension(<dimspec>)
common, parameter
allocatable
optional, required, external
depend([<names>])
check([<C-booleanexpr>])
note(<LaTeX text>)
usercode, callstatement, callprotoargument, threadsafe, fortranname
pymethoddef
entry
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