Delete filetimes.py

filetimes.py

@@ -1,104 +0,0 @@
-# Copyright (c) 2009, David Buxton <david@gasmark6.com>
-# All rights reserved.
-# 
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are
-# met:
-# 
-#     * Redistributions of source code must retain the above copyright
-# notice, this list of conditions and the following disclaimer.
-#     * Redistributions in binary form must reproduce the above copyright
-# notice, this list of conditions and the following disclaimer in the
-# documentation and/or other materials provided with the distribution.
-# 
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
-# IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
-# TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
-# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
-# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
-# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
-# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-"""Tools to convert between Python datetime instances and Microsoft times.
-"""
-from datetime import datetime, timedelta, tzinfo
-from calendar import timegm
-
-
-# http://support.microsoft.com/kb/167296
-# How To Convert a UNIX time_t to a Win32 FILETIME or SYSTEMTIME
-EPOCH_AS_FILETIME = 116444736000000000  # January 1, 1970 as MS file time
-HUNDREDS_OF_NANOSECONDS = 10000000
-
-
-ZERO = timedelta(0)
-HOUR = timedelta(hours=1)
-
-
-class UTC(tzinfo):
-	"""UTC"""
-	def utcoffset(self, dt):
-		return ZERO
-
-	def tzname(self, dt):
-		return "UTC"
-
-	def dst(self, dt):
-		return ZERO
-
-
-utc = UTC()
-
-
-def dt_to_filetime(dt):
-	"""Converts a datetime to Microsoft filetime format. If the object is
-	time zone-naive, it is forced to UTC before conversion.
-
-	>>> "%.0f" % dt_to_filetime(datetime(2009, 7, 25, 23, 0))
-	'128930364000000000'
-
-	>>> "%.0f" % dt_to_filetime(datetime(1970, 1, 1, 0, 0, tzinfo=utc))
-	'116444736000000000'
-
-	>>> "%.0f" % dt_to_filetime(datetime(1970, 1, 1, 0, 0))
-	'116444736000000000'
-	
-	>>> dt_to_filetime(datetime(2009, 7, 25, 23, 0, 0, 100))
-	128930364000001000
-	"""
-	if (dt.tzinfo is None) or (dt.tzinfo.utcoffset(dt) is None):
-		dt = dt.replace(tzinfo=utc)
-	ft = EPOCH_AS_FILETIME + (timegm(dt.timetuple()) * HUNDREDS_OF_NANOSECONDS)
-	return ft + (dt.microsecond * 10)
-
-
-def filetime_to_dt(ft):
-	"""Converts a Microsoft filetime number to a Python datetime. The new
-	datetime object is time zone-naive but is equivalent to tzinfo=utc.
-
-	>>> filetime_to_dt(116444736000000000)
-	datetime.datetime(1970, 1, 1, 0, 0)
-
-	>>> filetime_to_dt(128930364000000000)
-	datetime.datetime(2009, 7, 25, 23, 0)
-	
-	>>> filetime_to_dt(128930364000001000)
-	datetime.datetime(2009, 7, 25, 23, 0, 0, 100)
-	"""
-	# Get seconds and remainder in terms of Unix epoch
-	(s, ns100) = divmod(ft - EPOCH_AS_FILETIME, HUNDREDS_OF_NANOSECONDS)
-	# Convert to datetime object
-	dt = datetime.utcfromtimestamp(s)
-	# Add remainder in as microseconds. Python 3.2 requires an integer
-	dt = dt.replace(microsecond=(ns100 // 10))
-	return dt
-
-
-if __name__ == "__main__":
-	import doctest
-	
-	doctest.testmod()
-