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Pass numeric arrays from C extensions to Python
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JBT
Sep 23, 2012, 9:39:42 PM9/23/12
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Hi,
I am looking for a way to pass numeric arrays, such as *float a[100]; double b[200];*, from C extension codes to python. The use case of this problem is that you have data stored in a particular format, NASA common data format (CDF) in my case, and there exists an official C library to read/create/edit such data, and you want to do data analysis in python. The problem comes down to how to feed the data into python.
I did some googling, but so far no luck. Can anyone help me? Thank you very much.
Cheers,
JBT
I am looking for a way to pass numeric arrays, such as *float a[100]; double b[200];*, from C extension codes to python. The use case of this problem is that you have data stored in a particular format, NASA common data format (CDF) in my case, and there exists an official C library to read/create/edit such data, and you want to do data analysis in python. The problem comes down to how to feed the data into python.
I did some googling, but so far no luck. Can anyone help me? Thank you very much.
Cheers,
JBT
Terry Reedy
Sep 23, 2012, 10:48:11 PM9/23/12
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Terry Jan Reedy
Grant Edwards
Sep 24, 2012, 10:55:37 AM9/24/12
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On 2012-09-24, JBT <jianb...@gmail.com> wrote:
> I am looking for a way to pass numeric arrays, such as *float a[100];
> double b[200];*, from C extension codes to python. The use case of
> this problem is that you have data stored in a particular format,
> NASA common data format (CDF) in my case, and there exists an
> official C library to read/create/edit such data, and you want to do
> data analysis in python. The problem comes down to how to feed the
> data into python.
In a addition to scipy and scientific python (two different projects),
> I am looking for a way to pass numeric arrays, such as *float a[100];
> double b[200];*, from C extension codes to python. The use case of
> this problem is that you have data stored in a particular format,
> NASA common data format (CDF) in my case, and there exists an
> official C library to read/create/edit such data, and you want to do
> data analysis in python. The problem comes down to how to feed the
> data into python.
you should probably take a look at the struct module and the ctypes
module.
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