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Groups > comp.lang.python > #29881 > unrolled thread
| Started by | JBT <jianbao.tao@gmail.com> |
|---|---|
| First post | 2012-09-23 18:39 -0700 |
| Last post | 2012-09-24 14:55 +0000 |
| Articles | 3 — 3 participants |
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Pass numeric arrays from C extensions to Python JBT <jianbao.tao@gmail.com> - 2012-09-23 18:39 -0700
Re: Pass numeric arrays from C extensions to Python Terry Reedy <tjreedy@udel.edu> - 2012-09-23 22:48 -0400
Re: Pass numeric arrays from C extensions to Python Grant Edwards <invalid@invalid.invalid> - 2012-09-24 14:55 +0000
| From | JBT <jianbao.tao@gmail.com> |
|---|---|
| Date | 2012-09-23 18:39 -0700 |
| Subject | Pass numeric arrays from C extensions to Python |
| Message-ID | <05993015-7be1-4424-b062-1755f59f3142@googlegroups.com> |
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
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| From | Terry Reedy <tjreedy@udel.edu> |
|---|---|
| Date | 2012-09-23 22:48 -0400 |
| Message-ID | <mailman.1178.1348454915.27098.python-list@python.org> |
| In reply to | #29881 |
On 9/23/2012 9:39 PM, JBT wrote: > 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. I would look into numpy and scipy. -- Terry Jan Reedy
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| From | Grant Edwards <invalid@invalid.invalid> |
|---|---|
| Date | 2012-09-24 14:55 +0000 |
| Message-ID | <k3ps99$qmg$1@reader1.panix.com> |
| In reply to | #29881 |
On 2012-09-24, JBT <jianbao.tao@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),
you should probably take a look at the struct module and the ctypes
module.
--
Grant Edwards grant.b.edwards Yow! Life is a POPULARITY
at CONTEST! I'm REFRESHINGLY
gmail.com CANDID!!
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