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annotate python/epoch2date.py @ 677:f3c73873bcb5

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script to really forecably remove debian packages
author Jeff Hammel <k0scist@gmail.com>
date Sat, 10 May 2014 10:38:56 -0700
parents 1e1bed921c08
children 7c4ee496794c
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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 conversion between epoch and dates
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6
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7 https://docs.python.org/2/library/time.html
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8 https://docs.python.org/2/library/datetime.html
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9 """
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10
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11 # TODO: tz info
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12 #http://bugs.python.org/issue7229
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13 # http://stackoverflow.com/questions/13218506/how-to-get-system-timezone-setting-and-pass-it-to-pytz-timezone
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14
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15
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16 import argparse
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17 import datetime
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18 import os
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19 import subprocess
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20 import sys
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21 import time
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22
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23 try:
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24 # use dateutil parser if available
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25 from dateutil.parser import parse as parse_date
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26 except ImportError:
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27 parse_date = None
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28
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29
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30 def main(args=sys.argv[1:]):
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31 """CLI"""
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32
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33 # parse command line
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34 parser = argparse.ArgumentParser(description=__doc__)
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35 parser.add_argument('seconds_since_epoch',
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36 type=float, nargs='*', default=time.time(),
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37 help="seconds since epoch input [DEFAULT: %(default)s]")
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38 parser.add_argument('--utc', dest='display_utc',
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39 action='store_true', default=False,
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40 help="display UTC time only")
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41 options = parser.parse_args(args)
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42
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43 if isinstance(options.seconds_since_epoch, float):
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44 options.seconds_since_epoch = [ options.seconds_since_epoch ]
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45
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46 for s in options.seconds_since_epoch:
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47
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48 # produce a datetime
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49 dt = datetime.datetime.fromtimestamp(s)
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50 dt2 = datetime.datetime.utcfromtimestamp(s)
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51
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52 # output
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53 if not options.display_utc:
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54 print ("{} seconds since epoch".format(s))
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55 print ("{} {}".format(dt, time.tzname[time.daylight]))
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56 print ("{} UTC".format(dt2))
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57
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58 if __name__ == '__main__':
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59 main()