Hi,
I have a file format that ends in a 4-byte (int32) number. I would
like to read this value in python on a WinXP machine with something
like:
fname = 'somefile'
f = open(fname, 'rb')
f.seek(-4,2)
offset = f.read()
... but this doesn't seem to work. The value that Python returns is:
'@\x19\x01\x00'
but I know from similar code in Matlab that the correct sequence is:
64 25 1 0
Can someone point out my error?
A file is a sequence of characters. That is what Python is showing you. Since 3 of them are not "graphic characters" Python displays their hexadecimal equivalents.. x19 translated to base 10 is 25. To ask Python to (in essence) cast a character to an integer you use the ord function. Ord('\x19') will give you integer 25.
Thanks!
Marcus
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