在python中调用fortran代码时如何处理全局变量（例如使用f2py）？(How to deal with global variables when calling fortran code

在python中调用fortran代码时如何处理全局变量（例如使用f2py）？(How to deal with global variables when calling fortran code in python (e.g. with f2py)?)

我想用python运行一些fortran代码，并使用f2py -c -m 。 但是，似乎只有FUNCTION被打包到.so文件中，而不是打包到PROGRAM中 。 那我怎么处理全局变量呢？ 例如，变量c放在模块中

MODULE nfw double precision :: c END MODULE nfw

，在PROGRAM中被修改，并由隐含的同一文件中的FUNCTION使用

PROGRAM Compute_Profile USE nfw c = 5.0 END PROGRAM Compute_Profile DOUBLE PRECISION FUNCTION y(x) USE nfw double precision :: x y = c * x return END FUNCTION y

我如何调用让函数y（x）知道python中c的值？

I want to run some fortran codes with python and am using f2py -c -m for it. However, it seems that only the FUNCTIONs are packed into the .so file, but not the PROGRAM. How can I deal with global variables then? For example, a variable c is put in a module

MODULE nfw double precision :: c END MODULE nfw

,is modified in the PROGRAM, and is used by a FUNCTION in the same file implicitly

PROGRAM Compute_Profile USE nfw c = 5.0 END PROGRAM Compute_Profile DOUBLE PRECISION FUNCTION y(x) USE nfw double precision :: x y = c * x return END FUNCTION y

How can I call let the function y(x) know about the value of c in python?

最满意答案

在你的f2py模块下应该是另一个模块，Fortran一个名为nfw。 应该在那里。

$ f2py -c -m mod nfw.f90 $ python import mod mod.nfw.c array(0.0)

确保使用带有f2py的模块编译源文件。

Under your f2py module should be another module, the Fortran one named nfw. It should be there.

$ f2py -c -m mod nfw.f90 $ python import mod mod.nfw.c array(0.0)

Make sure you compile the source file with the module with f2py.