Either the new ability of os.stat() to report subsecond
file modification times, or the os.utime() function,
appears to have a bug on Windows. The following script
illustrates. The problem is that the decimal part of
the modification time reported by os.stat() is always
equal to the decimal part of what was passed to
os.utime() divided by ten (and rounded).

###Begin Script
import os

strPath = "c:/test.xxx"

#Create the file
f = open(strPath, 'w')
f.close()

#Set the file mod time
t1 = 1159195039.2
os.utime(strPath, (t1, t1))

#Get the file mod time
t2 = os.stat(strPath).st_mtime

print t1, t2

###Sample output
1159195039.2 1159195039.02

Logged In: YES 
user_id=963931

Sorry, although it can be inferred from the report, I should
mention that this is with Python 2.5.

Logged In: YES 
user_id=21627

Thanks for the report. This is now fixed in r52257 and r52258.