[Tutor] reading output from a c executable.

[Ravi Kondamuru]

I am trying to read a binary log file to extract system counters. These
counters will then be used to generate web-based graphs using the
chart-director api in python. For extracting the counters I planning to
write a program in C to read and give the output as lists for use by
chart-director. If possible i would like to do the parsing of data only once
in C on the log file and pass the processed output for direct use by
python.
I have thought about having to populate a database first but will prefer to
avoid having another intermediate datastore (apart from the log file).

thanks,
Ravi.

On Thu, Dec 11, 2008 at 10:27 AM, Steve Willoughby <steve at alchemy.com>wrote:

> Ravi Kondamuru wrote:
>
>> Hi,
>> I am writing a script to read list output from a C executable. How should
>> c program be written so that python can read the output as a list?
>> Any pointers to info on this appreciated.
>>
>
> The possibilities are truly wide open on this.  Python can read a variety
> of standard formats (and of course can have custom code to read anything.
>  Depending on what the data involved actually are, you need to decide what
> format works best.
>
> A simple approach is to have the C program write simple CSV output, and use
> Python's csv module to read it.  A more complex solution might be to use
> XML.  There are approximately 52,495,102 other possibilities available too,
> so you have lots of room to work out what's best for your  application.
>  More specific information on what you're trying to accomplish would help
> narrow it down as well.
>
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