On Win XP 64bit, Python 2.6.1 64bit

I am trying to rename files by their creation time.

It seems the time module is too smart for its own good here.

time.localtime(os.path.getctime(f)) returns a value one hour off from what windows reports for files that were created when Daylight savings time was in effect (ie when the tm_isdst field is one). I can kludge it, but am I missing the "right" way to do it?

Tim

full code:
import os, time

filetypes = (".avi")

skipped = []
for f in os.listdir("."):
    root, ext = os.path.splitext(f)
    if ext in filetypes:
        creation_time = time.localtime(os.path.getctime(f))
        newname = time.strftime("%Y-%m-%d_%H%M" + ext, creation_time)
        if os.path.exists(newname):
            skipped.append(newname)
        else:
            os.rename(f, newname)
            print f, "->", newname
    else:
        skipped.append(f)

print
print "These files were skipped:"
for sf in skipped:
    print sf
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