On Sep 8, 2:31 pm, John Machin <[EMAIL PROTECTED]> wrote: > On Sep 8, 7:05 pm, Praveena P <[EMAIL PROTECTED]> wrote: > > > Hi folks, > > > I am new to Python... so am not too sure about how the type conversion > > works. > > > I have to read a file that contains hexadecimal data and use the data > > further to do some arithmetic calculations. > > A sample of the input is : 00000000000020E0000032F800000000400022005E > > The problem I am facing is this: > > I am using f.read(2) to read a byte at a time, but the data that is > > read is a string rather than a number. So it kind of hampers any > > arithmetic operations I perform on this data... > > > Could you please suggest some method I could use for this? > > *IF* all the data consists of unsigned 8-bit integers > a_byte = f.read(2) > uint8 = int(a_byte, 16) > > But I doubt it and that would be rather slow anyway. If your data is > homogenous, look at the array module. Otherwise, once you've worked > out how to break your file down into records, and what the layout of > each record is, you'll need the struct module. > > HTH, > John
Hey John, Thanks! That was useful... I am still putting the code together with all the operations... will probably have loads more queries... :-) Have a good day! Praveena -- http://mail.python.org/mailman/listinfo/python-list
