Reading a binary file in as hex
Grant Edwards
grante at visi.com
Tue Oct 17 17:12:29 EDT 2000
In article <8sicku$91r$1 at nnrp1.deja.com>, alfred6465 at my-deja.com wrote:
>I am new to python and am kinda stuck on something. I have a binary
>file which I would like to read as hexidecimal. The file can vary in
>length. After I get it in a hex format I want to scan through it to
>look for certain numbers. Any thoughts on how to do this?
I'm not sure what you mean by "read as hexidecimal".
If you want to read the bytes in a file and convert each to a
hex string, you can do something like this:
import string
d = open("file.data","rb").read()
l = map(lambda x: '%02x' % ord(x), d)
s = string.join(l)
print s
Or mashed into a one-liner:
string.join(map(lambda x: '%02x' % ord(x), open("file.data","rb").read()))
If you've got Python 2.0 you can use a list comprehension
rather than the Schemesque map/lambda
--
Grant Edwards grante Yow! But they went to MARS
at around 1953!!
visi.com
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