[GujuBoy wrote]
i have the following code...which works fine in UNIX but then i move it
over to WINDOWS XP and check the sum on the same file that i tested on
unix and i get different results.
def checksum(fileobj):
filedata = array.array('B', fileobj.read())
totbytes = len(filedata)
result = 0
def rotate_right(c):
if c&1: return (c>>1)|0x8000
else: return c>>1
for ch in filedata:
result = (rotate_right(result)+ch) & 0xFFFF
return result
Unix File = 8683
Win32 = 23662
Please let me know why its acting different in WIN32, also it only does
this on SOME files...out of 50 i tested only 5 it failed on.
By "failed" you mean the checksum is different? The file itself (if it
is a text file) might very well have different content: EOL characters
are different on Windows (CRLF) and Unix (LF). If a text file is opened
in textmode (the default), then the CRLF's will get translated to LF's,
however, if opened in binary mode (by having a 'b' in the mode option to
open()/file()) then this translation is not done.
Also, any reason you are not just using the hexdigest() method in the
md5 module?
Cheers,
Trent
--
Trent Mick
Tr****@ActiveState.com 
