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Re: issue with struct.unpack

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From Dennis Lee Bieber <wlfraed@ix.netcom.com>
Subject Re: issue with struct.unpack
Date Tue, 28 Aug 2012 22:40:04 -0400
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On Tue, 28 Aug 2012 15:35:58 -0700 (PDT), 9bizy
<a.m.akingbulu-11@student.lboro.ac.uk> declaimed the following in
gmane.comp.python.general:

> 
> I used this documents but they do not explain or provide an example on how to use struct.unpack for sensor data from an external source or even data from a excel sheet.

	Why should it?... struct doesn't care WHERE the data came from; it
just takes a /string of bytes/ and interprets the contents as a series
of raw binary fields based upon the format character.

>>> import struct
>>> data = "elevenbytes"
>>> struct.unpack("!B4HH", data)
(101, 27749, 30309, 28258, 31092, 25971)
>>> ndata = [30, 138, 32260, 563, 3238, 23537]
>>> struct.pack("!B4HH", *ndata)
'\x1e\x00\x8a~\x04\x023\x0c\xa6[\xf1'
>>> 
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
        wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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Thread

issue with struct.unpack 9bizy <a.m.akingbulu-11@student.lboro.ac.uk> - 2012-08-25 11:34 -0700
  Re: issue with struct.unpack Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-08-25 20:12 +0100
  Re: issue with struct.unpack MRAB <python@mrabarnett.plus.com> - 2012-08-25 20:16 +0100
    Re: issue with struct.unpack 9bizy <a.m.akingbulu-11@student.lboro.ac.uk> - 2012-08-28 15:35 -0700
      Re: issue with struct.unpack MRAB <python@mrabarnett.plus.com> - 2012-08-28 23:53 +0100
      Re: issue with struct.unpack Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-08-28 22:40 -0400
    Re: issue with struct.unpack 9bizy <a.m.akingbulu-11@student.lboro.ac.uk> - 2012-08-28 15:35 -0700
  Re: issue with struct.unpack Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-08-25 19:31 -0400
    Re: issue with struct.unpack Alexander Blinne <news@blinne.net> - 2012-08-26 14:53 +0200
  Re: issue with struct.unpack MRAB <python@mrabarnett.plus.com> - 2012-08-28 23:49 +0100
    Re: issue with struct.unpack 9bizy <a.m.akingbulu-11@student.lboro.ac.uk> - 2012-08-28 16:01 -0700
    Re: issue with struct.unpack MRAB <python@mrabarnett.plus.com> - 2012-08-29 00:36 +0100
      Re: issue with struct.unpack 9bizy <a.m.akingbulu-11@student.lboro.ac.uk> - 2012-08-28 16:55 -0700
      Re: issue with struct.unpack 9bizy <a.m.akingbulu-11@student.lboro.ac.uk> - 2012-08-28 16:55 -0700
  Re: issue with struct.unpack Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-08-28 22:31 -0400

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