Import geerated code to other programs

[Ash]

Hello,

I have gone through the code generation tutorial (https://github.com/shyamashi/scipy-2017-codegen-tutorial/blob/master/notebooks/08-cythonizing.ipynb) and converted my matrices (mass & coriolis) into a 'C' code and created two folders MassMatrix and Coriolisvector. The following two lines are the one which I used

from sympy.utilities.autowrap import autowrap
auto_odes = autowrap(mass_matrix, backend='cython', tempdir='./MassMatrix')

Inside MassMatrix folder, I see file names starting with 'wrapper.', setup.py etc.. Is there a way to rename this file (wrapper) when it's being created? Also, I
ran the command 'python setup.py install' and tried to do

from MassMatrix.wrapper_module_0 import autofunc_c as MM

It throws an error 'No module named 'MassMatrix.wrapper_module_0'. Can anyone tell me what am I doing wrong? Is there a more elegant way to do this?
My folder structure is 

ABC
   MassMatrix
   Coriolis

All the above are names of folders and I am inside ABC folder

Thanks in advance for any help 

[Aaron Meurer]

What are the files inside the MassMatrix folder? Make sure you have an
__init__.py file there.

Aaron Meurer

>
> Thanks in advance for any help
>

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[Ash]

Thanks for the reply. I did have __init__.py in my MassMatrix folder but still the error persists. Attaching a screenshot of the folder

Ash

On Monday, 25 November 2019 17:53:22 UTC, Aaron Meurer wrote:

On Mon, Nov 25, 2019 at 10:47 AM Ash <shya...@gmail.com> wrote:
>
> Hello,
> I have gone through the code generation tutorial (https://github.com/shyamashi/scipy-2017-codegen-tutorial/blob/master/notebooks/08-cythonizing.ipynb) and converted my matrices (mass & coriolis) into a 'C' code and created two folders MassMatrix and Coriolisvector. The following two lines are the one which I used
>
>
> from sympy.utilities.autowrap import autowrap
> auto_odes = autowrap(mass_matrix, backend='cython', tempdir='./MassMatrix')
>
> Inside MassMatrix folder, I see file names starting with 'wrapper.', setup.py etc.. Is there a way to rename this file (wrapper) when it's being created? Also, I
> ran the command 'python setup.py install' and tried to do
>
> from MassMatrix.wrapper_module_0 import autofunc_c as MM
>
> It throws an error 'No module named 'MassMatrix.wrapper_module_0'. Can anyone tell me what am I doing wrong? Is there a more elegant way to do this?
> My folder structure is
>
> ABC
>    MassMatrix
>    Coriolis
>
> All the above are names of folders and I am inside ABC folder

What are the files inside the MassMatrix folder? Make sure you have an
__init__.py file there.

Aaron Meurer

>
> Thanks in advance for any help
>
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> You received this message because you are subscribed to the Google Groups "sympy" group.

> To unsubscribe from this group and stop receiving emails from it, send an email to sy...@googlegroups.com.

[Aaron Meurer]

If MassMatrix is your module, then generally setup.py should sit alongside the module, not inside of it. 

Aaron Meurer

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[Ash]

Thanks Aaron for the reply

I tried to install by running 'python setup.py install' outside the MassMatrix folder. I also set path variable in setup.py for the various modules (like wrapper_module_0.pyx etc) as follows

af = '/home/ash/Ash/model_predictive_control/src/Lm/'

ext_mods = [Extension(
    af+'wrapper_module_3', [af+'wrapper_module_3.pyx', af+'wrapped_code_3.c'],
    include_dirs=[np.get_include()],
    library_dirs=[],
    libraries=[],
    extra_compile_args=['-std=c99'],
    extra_link_args=[]

Still the import (from MassMatrix.wrapper_module_0 import autofunc_c as MM) does not work

Ash

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