"Py Hex" <[EMAIL PROTECTED]> wrote
type(hex(12))
<type 'str'>
I get a string type back, i.e, '0xC' not 0xC
Thats right because hex is a representation format.
The data (12 in this case) is stored in binary on the PC.
What you see as hex (or decimal or ocatal...) is just
a string representation of the underlying binary data.
On the other hand, if I use 0x with data, Python
understands it is hex data and not a string value.
e = 0xCD
type(e)
<type 'int'>
Close. Python understands the string of characters you
typed is in hex format and interprets the string as an integer
value which it stores in binary internally.
How can I convert this string returned by hex builtin
function to data with 0x prefixed ?
The 0x prefix is a string. The data is always in binary.
You cannot convert a number to anything (other than
int-float etc) you can only change its string representation.
Am I missing anything ?
Yes, you are missing the underlying data representation
within the machine. You need to distinguish clearly in your
mind the difference between what is stored and what is
displayed. The storage is always binary. The display is
whatever format you ask for (with decimal as default)
HTH,
--
Alan Gauld
Author of the Learn to Program web site
http://www.freenetpages.co.uk/hp/alan.gauld
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