how to reading binary data...

Miki Tebeka miki.tebeka at zoran.com
Thu Oct 21 10:07:32 CEST 2004


Hello Sandeep,

>    I opened any particular file with the 'rb' mode that is read binary
>    mode. so python will treat the data as a raw data. now i want to read
>    first 4 bytes only then i will convert the first 4 bytes into long
>    datatype and then again read 4 bytes and will do the same.
>    But how to set & move the pointer using loop?
Each time you read from a file the "file pointer" is automatically
incrmented.

>>> f = open(".bashrc")
>>> f.tell()
0L
>>> f.read(1)
'#'
>>> f.tell()
1L
See http://docs.python.org/lib/bltin-file-objects.html

>    also how to convert into long?
http://docs.python.org/lib/module-struct.html

HTH.
--
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Miki Tebeka <miki.tebeka at gmail.com>
http://tebeka.spymac.net
The only difference between children and adults is the price of the toys



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