我们从Python开源项目中，提取了以下50个代码示例，用于说明如何使用psycopg2.tz()。
def test_cast_timestamptz(self): from psycopg2.extras import DateTimeTZRange from psycopg2.tz import FixedOffsetTimezone cur = self.conn.cursor() ts1 = datetime(2000, 1, 1, tzinfo=FixedOffsetTimezone(600)) ts2 = datetime(2000, 12, 31, 23, 59, 59, 999, tzinfo=FixedOffsetTimezone(600)) cur.execute("select tstzrange(%s, %s, '[]')", (ts1, ts2)) r = cur.fetchone()[0] self.assert_(isinstance(r, DateTimeTZRange)) self.assert_(not r.isempty) self.assertEqual(r.lower, ts1) self.assertEqual(r.upper, ts2) self.assert_(not r.lower_inf) self.assert_(not r.upper_inf) self.assert_(r.lower_inc) self.assert_(r.upper_inc)
def test_cast_timestamptz(self): from psycopg2.extras import DateTimeTZRange from psycopg2.tz import FixedOffsetTimezone cur = self.conn.cursor() ts1 = datetime(2000,1,1, tzinfo=FixedOffsetTimezone(600)) ts2 = datetime(2000,12,31,23,59,59,999, tzinfo=FixedOffsetTimezone(600)) cur.execute("select tstzrange(%s, %s, '[]')", (ts1, ts2)) r = cur.fetchone()[0] self.assert_(isinstance(r, DateTimeTZRange)) self.assert_(not r.isempty) self.assertEqual(r.lower, ts1) self.assertEqual(r.upper, ts2) self.assert_(not r.lower_inf) self.assert_(not r.upper_inf) self.assert_(r.lower_inc) self.assert_(r.upper_inc)
def test_type_roundtrip_datetimetz(self): from datetime import datetime import psycopg2.tz tz = psycopg2.tz.FixedOffsetTimezone(8 * 60) dt1 = datetime(2010, 5, 3, 10, 20, 30, tzinfo=tz) dt2 = self._test_type_roundtrip(dt1) self.assertNotEqual(None, dt2.tzinfo) self.assertEqual(dt1, dt2)
def test_type_roundtrip_timetz(self): from datetime import time import psycopg2.tz tz = psycopg2.tz.FixedOffsetTimezone(8 * 60) tm1 = time(10, 20, 30, tzinfo=tz) tm2 = self._test_type_roundtrip(tm1) self.assertNotEqual(None, tm2.tzinfo) self.assertEqual(tm1, tm2)
def test_repr_with_positive_offset(self): tzinfo = FixedOffsetTimezone(5 * 60) self.assertEqual(repr(tzinfo), "psycopg2.tz.FixedOffsetTimezone(offset=300, name=None)")
def test_repr_with_negative_offset(self): tzinfo = FixedOffsetTimezone(-5 * 60) self.assertEqual(repr(tzinfo), "psycopg2.tz.FixedOffsetTimezone(offset=-300, name=None)")
def test_repr_with_name(self): tzinfo = FixedOffsetTimezone(name="FOO") self.assertEqual(repr(tzinfo), "psycopg2.tz.FixedOffsetTimezone(offset=0, name='FOO')")
def test_adapt_date_range(self): from psycopg2.extras import DateRange, DateTimeRange, DateTimeTZRange from psycopg2.tz import FixedOffsetTimezone cur = self.conn.cursor() d1 = date(2012, 0o1, 0o1) d2 = date(2012, 12, 31) r = DateRange(d1, d2) cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assertTrue(isinstance(r1, DateRange)) self.assertEqual(r1.lower, d1) self.assertEqual(r1.upper, d2) self.assertTrue(r1.lower_inc) self.assertTrue(not r1.upper_inc) r = DateTimeRange(empty=True) cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assertTrue(isinstance(r1, DateTimeRange)) self.assertTrue(r1.isempty) ts1 = datetime(2000, 1, 1, tzinfo=FixedOffsetTimezone(600)) ts2 = datetime(2000, 12, 31, 23, 59, 59, 999, tzinfo=FixedOffsetTimezone(600)) r = DateTimeTZRange(ts1, ts2, '(]') cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assertTrue(isinstance(r1, DateTimeTZRange)) self.assertEqual(r1.lower, ts1) self.assertEqual(r1.upper, ts2) self.assertTrue(not r1.lower_inc) self.assertTrue(r1.upper_inc)
def test_adapt_date_range(self): from psycopg2.extras import DateRange, DateTimeRange, DateTimeTZRange from psycopg2.tz import FixedOffsetTimezone cur = self.conn.cursor() d1 = date(2012, 01, 01) d2 = date(2012, 12, 31) r = DateRange(d1, d2) cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assert_(isinstance(r1, DateRange)) self.assertEqual(r1.lower, d1) self.assertEqual(r1.upper, d2) self.assert_(r1.lower_inc) self.assert_(not r1.upper_inc) r = DateTimeRange(empty=True) cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assert_(isinstance(r1, DateTimeRange)) self.assert_(r1.isempty) ts1 = datetime(2000, 1, 1, tzinfo=FixedOffsetTimezone(600)) ts2 = datetime(2000, 12, 31, 23, 59, 59, 999, tzinfo=FixedOffsetTimezone(600)) r = DateTimeTZRange(ts1, ts2, '(]') cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assert_(isinstance(r1, DateTimeTZRange)) self.assertEqual(r1.lower, ts1) self.assertEqual(r1.upper, ts2) self.assert_(not r1.lower_inc) self.assert_(r1.upper_inc)
def test_type_roundtrip_datetimetz(self): from datetime import datetime import psycopg2.tz tz = psycopg2.tz.FixedOffsetTimezone(8*60) dt1 = datetime(2010,5,3,10,20,30, tzinfo=tz) dt2 = self._test_type_roundtrip(dt1) self.assertNotEqual(None, dt2.tzinfo) self.assertEqual(dt1, dt2)
def test_type_roundtrip_timetz(self): from datetime import time import psycopg2.tz tz = psycopg2.tz.FixedOffsetTimezone(8*60) tm1 = time(10,20,30, tzinfo=tz) tm2 = self._test_type_roundtrip(tm1) self.assertNotEqual(None, tm2.tzinfo) self.assertEqual(tm1, tm2)
def test_adapt_date_range(self): from psycopg2.extras import DateRange, DateTimeRange, DateTimeTZRange from psycopg2.tz import FixedOffsetTimezone cur = self.conn.cursor() d1 = date(2012, 01, 01) d2 = date(2012, 12, 31) r = DateRange(d1, d2) cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assert_(isinstance(r1, DateRange)) self.assertEqual(r1.lower, d1) self.assertEqual(r1.upper, d2) self.assert_(r1.lower_inc) self.assert_(not r1.upper_inc) r = DateTimeRange(empty=True) cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assert_(isinstance(r1, DateTimeRange)) self.assert_(r1.isempty) ts1 = datetime(2000,1,1, tzinfo=FixedOffsetTimezone(600)) ts2 = datetime(2000,12,31,23,59,59,999, tzinfo=FixedOffsetTimezone(600)) r = DateTimeTZRange(ts1, ts2, '(]') cur.execute("select %s", (r,)) r1 = cur.fetchone()[0] self.assert_(isinstance(r1, DateTimeTZRange)) self.assertEqual(r1.lower, ts1) self.assertEqual(r1.upper, ts2) self.assert_(not r1.lower_inc) self.assert_(r1.upper_inc)
