def test_tz_database(self):
tz_db = local_time.time_zone_database()
tz_db.load_from_file( os.path.join( os.path.split( date_time.__file__ )[0]
, 'date_time_zonespec.csv' ) )
self.failUnless( not tz_db.time_zone_from_region("Invalid/name") )
nyc_test = tz_db.time_zone_from_region("America/New_York")
self.failUnless( nyc_test )
self.failUnless( nyc_test.std_zone_abbrev() == "EST" )
self.failUnless( nyc_test.std_zone_name() == "Eastern Standard Time" )
self.failUnless( nyc_test.dst_zone_abbrev() == "EDT" )
self.failUnless( nyc_test.dst_zone_name() == "Eastern Daylight Time" )
self.failUnless( nyc_test.base_utc_offset() == posix_time.hours(-5) )
self.failUnless( nyc_test.dst_offset() == posix_time.hours(1) )
self.failUnless( nyc_test.dst_local_start_time(2004)
== posix_time.ptime( gregorian.date(2004, date_time.Apr, 4)
, posix_time.hours(2) ) )
self.failUnless( nyc_test.dst_local_end_time(2004)
== posix_time.ptime( gregorian.date(2004, date_time.Oct, 31)
, posix_time.hours(2) ) )
self.failUnless( nyc_test.has_dst() )
phx_test = tz_db.time_zone_from_region("America/Phoenix")
self.failUnless( phx_test )
self.failUnless( phx_test.std_zone_abbrev() == "MST" )
self.failUnless( phx_test.std_zone_name() == "Mountain Standard Time" )
self.failUnless( phx_test.dst_zone_abbrev() == "" )
self.failUnless( phx_test.dst_zone_name() == "" )
self.failUnless( phx_test.base_utc_offset() == posix_time.hours(-7) )
self.failUnless( phx_test.dst_offset() == posix_time.hours(0) )
self.failUnless( phx_test.has_dst() == False)
eastern = local_time.posix_time_zone("EST-05:00:00EDT+01:00:00,M4.1.0/02:00:00,M10.5.0/02:00:00")
tz_db.add_record("United States/Eastern", eastern)
eastern_test = tz_db.time_zone_from_region("United States/Eastern" )
self.failUnless( eastern_test )
self.failUnless( eastern_test.std_zone_abbrev() == "EST" )
self.failUnless( eastern_test.std_zone_name() == "EST" )
self.failUnless( eastern_test.dst_zone_abbrev() == "EDT" )
self.failUnless( eastern_test.dst_zone_name() == "EDT" )
self.failUnless( eastern_test.base_utc_offset() == posix_time.hours(-5) )
self.failUnless( eastern_test.dst_local_start_time(2004)
== posix_time.ptime( gregorian.date(2004, date_time.Apr, 4)
, posix_time.hours(2) ) )
self.failUnless( eastern_test.dst_local_end_time(2004)
== posix_time.ptime( gregorian.date(2004, date_time.Oct, 31)
, posix_time.hours(2) ) )
self.failUnless( eastern_test.has_dst() )
t2 = t1 - posix_time.minutes(4) + posix_time.seconds(2)
print 't2: ', to_simple_string(t2)
now = posix_time.second_clock.local_time()
#use the clock
print 'now: ', to_simple_string(now)
today = now.date() #Get the date part out of the time
print 'today: ', to_simple_string(today)
tomorrow = today + gregorian.date_duration(1)
print 'tomorrow: ', to_simple_string(tomorrow)
#Local time programming:
#setup some timezones for creating and adjusting times
#first time zone uses the time zone file for regional timezone definitions
tz_db = local_time.time_zone_database()
tz_db.load_from_file(
os.path.join(date_time.__path__[0], "date_time_zonespec.csv"))
nyc_tz = tz_db.time_zone_from_region("America/New_York")
#This timezone uses a posix time zone string definition to create a time zone
phx_tz = local_time.posix_time_zone("MST-07:00:00")
#local departure time in phoenix is 11 pm on April 2 2005
#Note that New York changes to daylight savings on Apr 3 at 2 am)
phx_departure = local_time.local_date_time(
gregorian.date(2005, date_time.Apr, 2), posix_time.hours(23), phx_tz,
local_time.local_date_time.NOT_DATE_TIME_ON_ERROR)
flight_length = posix_time.hours(4) + posix_time.minutes(30)
phx_arrival = phx_departure + flight_length
#//convert the phx time to a nyz time
t2 = t1 - posix_time.minutes(4) + posix_time.seconds(2)
print "t2: ", to_simple_string(t2)
now = posix_time.second_clock.local_time()
# use the clock
print "now: ", to_simple_string(now)
today = now.date() # Get the date part out of the time
print "today: ", to_simple_string(today)
tomorrow = today + gregorian.date_duration(1)
print "tomorrow: ", to_simple_string(tomorrow)
# Local time programming:
# setup some timezones for creating and adjusting times
# first time zone uses the time zone file for regional timezone definitions
tz_db = local_time.time_zone_database()
tz_db.load_from_file(os.path.join(date_time.__path__[0], "date_time_zonespec.csv"))
nyc_tz = tz_db.time_zone_from_region("America/New_York")
# This timezone uses a posix time zone string definition to create a time zone
phx_tz = local_time.posix_time_zone("MST-07:00:00")
# local departure time in phoenix is 11 pm on April 2 2005
# Note that New York changes to daylight savings on Apr 3 at 2 am)
phx_departure = local_time.local_date_time(
gregorian.date(2005, date_time.Apr, 2),
posix_time.hours(23),
phx_tz,
local_time.local_date_time.NOT_DATE_TIME_ON_ERROR,
)
flight_length = posix_time.hours(4) + posix_time.minutes(30)
