Python datetime.tzinfo 模块,utcoffset() 实例源码

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datetime.tzinfo.utcoffset()

项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        for otype, args in [
            (PicklableFixedOffset, (offset, 'cookie')),
            (timezone, (offset,)),
            (timezone, (offset, "EST"))]:
            orig = otype(*args)
            oname = orig.tzname(None)
            self.assertIsInstance(orig, tzinfo)
            self.assertIs(type(orig), otype)
            self.assertEqual(orig.utcoffset(None), offset)
            self.assertEqual(orig.tzname(None), oname)
            for pickler, unpickler, proto in pickle_choices:
                green = pickler.dumps(orig, proto)
                derived = unpickler.loads(green)
                self.assertIsInstance(derived, tzinfo)
                self.assertIs(type(derived), otype)
                self.assertEqual(derived.utcoffset(None), offset)
                self.assertEqual(derived.tzname(None), oname)
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_astimezone(self):
        # Pretty boring!  The TZ test is more interesting here.  astimezone()
        # simply can't be applied to a naive object.
        dt = self.theclass.now()
        f = FixedOffset(44, "")
        self.assertRaises(TypeError, dt.astimezone) # not enough args
        self.assertRaises(TypeError, dt.astimezone, f, f) # too many args
        self.assertRaises(TypeError, dt.astimezone, dt) # arg wrong type
        self.assertRaises(ValueError, dt.astimezone, f) # naive
        self.assertRaises(ValueError, dt.astimezone, tz=f)  # naive

        class Bogus(tzinfo):
            def utcoffset(self, dt): return None
            def dst(self, dt): return timedelta(0)
        bog = Bogus()
        self.assertRaises(ValueError, dt.astimezone, bog)   # naive
        self.assertRaises(ValueError,
                          dt.replace(tzinfo=bog).astimezone, f)

        class AlsoBogus(tzinfo):
            def utcoffset(self, dt): return timedelta(0)
            def dst(self, dt): return None
        alsobog = AlsoBogus()
        self.assertRaises(ValueError, dt.astimezone, alsobog) # also naive
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 20, 59, 16, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(5, 6, 7, tzinfo=tinfo)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 6, 7, 23, 20, 59, 1, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(*args, **{'tzinfo': tinfo})
        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:oil    作者:oilshell    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        orig = PicklableFixedOffset(offset, 'cookie')
        self.assertIsInstance(orig, tzinfo)
        self.assertTrue(type(orig) is PicklableFixedOffset)
        self.assertEqual(orig.utcoffset(None), offset)
        self.assertEqual(orig.tzname(None), 'cookie')
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertIsInstance(derived, tzinfo)
            self.assertTrue(type(derived) is PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(None), offset)
            self.assertEqual(derived.tzname(None), 'cookie')

#############################################################################
# Base class for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
项目:oil    作者:oilshell    | 项目源码 | 文件源码
def test_argument_passing(self):
        cls = self.theclass
        # A datetime passes itself on, a time passes None.
        class introspective(tzinfo):
            def tzname(self, dt):    return dt and "real" or "none"
            def utcoffset(self, dt):
                return timedelta(minutes = dt and 42 or -42)
            dst = utcoffset

        obj = cls(1, 2, 3, tzinfo=introspective())

        expected = cls is time and "none" or "real"
        self.assertEqual(obj.tzname(), expected)

        expected = timedelta(minutes=(cls is time and -42 or 42))
        self.assertEqual(obj.utcoffset(), expected)
        self.assertEqual(obj.dst(), expected)
项目:oil    作者:oilshell    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 6, 7, 23, 20, 59, 1, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(*args, **{'tzinfo': tinfo})
        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:python2-tracer    作者:extremecoders-re    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        orig = PicklableFixedOffset(offset, 'cookie')
        self.assertIsInstance(orig, tzinfo)
        self.assertTrue(type(orig) is PicklableFixedOffset)
        self.assertEqual(orig.utcoffset(None), offset)
        self.assertEqual(orig.tzname(None), 'cookie')
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertIsInstance(derived, tzinfo)
            self.assertTrue(type(derived) is PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(None), offset)
            self.assertEqual(derived.tzname(None), 'cookie')

#############################################################################
# Base class for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
项目:python2-tracer    作者:extremecoders-re    | 项目源码 | 文件源码
def test_argument_passing(self):
        cls = self.theclass
        # A datetime passes itself on, a time passes None.
        class introspective(tzinfo):
            def tzname(self, dt):    return dt and "real" or "none"
            def utcoffset(self, dt):
                return timedelta(minutes = dt and 42 or -42)
            dst = utcoffset

        obj = cls(1, 2, 3, tzinfo=introspective())

        expected = cls is time and "none" or "real"
        self.assertEqual(obj.tzname(), expected)

        expected = timedelta(minutes=(cls is time and -42 or 42))
        self.assertEqual(obj.utcoffset(), expected)
        self.assertEqual(obj.dst(), expected)
项目:python2-tracer    作者:extremecoders-re    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 6, 7, 23, 20, 59, 1, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(*args, **{'tzinfo': tinfo})
        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        for otype, args in [
            (PicklableFixedOffset, (offset, 'cookie')),
            (timezone, (offset,)),
            (timezone, (offset, "EST"))]:
            orig = otype(*args)
            oname = orig.tzname(None)
            self.assertIsInstance(orig, tzinfo)
            self.assertIs(type(orig), otype)
            self.assertEqual(orig.utcoffset(None), offset)
            self.assertEqual(orig.tzname(None), oname)
            for pickler, unpickler, proto in pickle_choices:
                green = pickler.dumps(orig, proto)
                derived = unpickler.loads(green)
                self.assertIsInstance(derived, tzinfo)
                self.assertIs(type(derived), otype)
                self.assertEqual(derived.utcoffset(None), offset)
                self.assertEqual(derived.tzname(None), oname)
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def test_astimezone(self):
        # Pretty boring!  The TZ test is more interesting here.  astimezone()
        # simply can't be applied to a naive object.
        dt = self.theclass.now()
        f = FixedOffset(44, "")
        self.assertRaises(ValueError, dt.astimezone) # naive
        self.assertRaises(TypeError, dt.astimezone, f, f) # too many args
        self.assertRaises(TypeError, dt.astimezone, dt) # arg wrong type
        self.assertRaises(ValueError, dt.astimezone, f) # naive
        self.assertRaises(ValueError, dt.astimezone, tz=f)  # naive

        class Bogus(tzinfo):
            def utcoffset(self, dt): return None
            def dst(self, dt): return timedelta(0)
        bog = Bogus()
        self.assertRaises(ValueError, dt.astimezone, bog)   # naive
        self.assertRaises(ValueError,
                          dt.replace(tzinfo=bog).astimezone, f)

        class AlsoBogus(tzinfo):
            def utcoffset(self, dt): return timedelta(0)
            def dst(self, dt): return None
        alsobog = AlsoBogus()
        self.assertRaises(ValueError, dt.astimezone, alsobog) # also naive
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 20, 59, 16, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(5, 6, 7, tzinfo=tinfo)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:web_ctp    作者:molebot    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 6, 7, 23, 20, 59, 1, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(*args, **{'tzinfo': tinfo})
        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:pefile.pypy    作者:cloudtracer    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        orig = PicklableFixedOffset(offset, 'cookie')
        self.assertIsInstance(orig, tzinfo)
        self.assertTrue(type(orig) is PicklableFixedOffset)
        self.assertEqual(orig.utcoffset(None), offset)
        self.assertEqual(orig.tzname(None), 'cookie')
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertIsInstance(derived, tzinfo)
            self.assertTrue(type(derived) is PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(None), offset)
            self.assertEqual(derived.tzname(None), 'cookie')

#############################################################################
# Base class for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
项目:pefile.pypy    作者:cloudtracer    | 项目源码 | 文件源码
def test_argument_passing(self):
        cls = self.theclass
        # A datetime passes itself on, a time passes None.
        class introspective(tzinfo):
            def tzname(self, dt):    return dt and "real" or "none"
            def utcoffset(self, dt):
                return timedelta(minutes = dt and 42 or -42)
            dst = utcoffset

        obj = cls(1, 2, 3, tzinfo=introspective())

        expected = cls is time and "none" or "real"
        self.assertEqual(obj.tzname(), expected)

        expected = timedelta(minutes=(cls is time and -42 or 42))
        self.assertEqual(obj.utcoffset(), expected)
        self.assertEqual(obj.dst(), expected)
项目:pefile.pypy    作者:cloudtracer    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 6, 7, 23, 20, 59, 1, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(*args, **{'tzinfo': tinfo})
        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        for otype, args in [
            (PicklableFixedOffset, (offset, 'cookie')),
            (timezone, (offset,)),
            (timezone, (offset, "EST"))]:
            orig = otype(*args)
            oname = orig.tzname(None)
            self.assertIsInstance(orig, tzinfo)
            self.assertIs(type(orig), otype)
            self.assertEqual(orig.utcoffset(None), offset)
            self.assertEqual(orig.tzname(None), oname)
            for pickler, unpickler, proto in pickle_choices:
                green = pickler.dumps(orig, proto)
                derived = unpickler.loads(green)
                self.assertIsInstance(derived, tzinfo)
                self.assertIs(type(derived), otype)
                self.assertEqual(derived.utcoffset(None), offset)
                self.assertEqual(derived.tzname(None), oname)
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_issue23600(self):
        DSTDIFF = DSTOFFSET = timedelta(hours=1)

        class UKSummerTime(tzinfo):
            """Simple time zone which pretends to always be in summer time, since
                that's what shows the failure.
            """

            def utcoffset(self, dt):
                return DSTOFFSET

            def dst(self, dt):
                return DSTDIFF

            def tzname(self, dt):
                return 'UKSummerTime'

        tz = UKSummerTime()
        u = datetime(2014, 4, 26, 12, 1, tzinfo=tz)
        t = tz.fromutc(u)
        self.assertEqual(t - t.utcoffset(), u)
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_astimezone(self):
        # Pretty boring!  The TZ test is more interesting here.  astimezone()
        # simply can't be applied to a naive object.
        dt = self.theclass.now()
        f = FixedOffset(44, "")
        self.assertRaises(ValueError, dt.astimezone) # naive
        self.assertRaises(TypeError, dt.astimezone, f, f) # too many args
        self.assertRaises(TypeError, dt.astimezone, dt) # arg wrong type
        self.assertRaises(ValueError, dt.astimezone, f) # naive
        self.assertRaises(ValueError, dt.astimezone, tz=f)  # naive

        class Bogus(tzinfo):
            def utcoffset(self, dt): return None
            def dst(self, dt): return timedelta(0)
        bog = Bogus()
        self.assertRaises(ValueError, dt.astimezone, bog)   # naive
        self.assertRaises(ValueError,
                          dt.replace(tzinfo=bog).astimezone, f)

        class AlsoBogus(tzinfo):
            def utcoffset(self, dt): return timedelta(0)
            def dst(self, dt): return None
        alsobog = AlsoBogus()
        self.assertRaises(ValueError, dt.astimezone, alsobog) # also naive
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_argument_passing(self):
        cls = self.theclass
        # A datetime passes itself on, a time passes None.
        class introspective(tzinfo):
            def tzname(self, dt):    return dt and "real" or "none"
            def utcoffset(self, dt):
                return timedelta(minutes = dt and 42 or -42)
            dst = utcoffset

        obj = cls(1, 2, 3, tzinfo=introspective())

        expected = cls is time and "none" or "real"
        self.assertEqual(obj.tzname(), expected)

        expected = timedelta(minutes=(cls is time and -42 or 42))
        self.assertEqual(obj.utcoffset(), expected)
        self.assertEqual(obj.dst(), expected)
项目:ouroboros    作者:pybee    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 20, 59, 16, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(5, 6, 7, tzinfo=tinfo)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:ndk-python    作者:gittor    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        orig = PicklableFixedOffset(offset, 'cookie')
        self.assertIsInstance(orig, tzinfo)
        self.assertTrue(type(orig) is PicklableFixedOffset)
        self.assertEqual(orig.utcoffset(None), offset)
        self.assertEqual(orig.tzname(None), 'cookie')
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertIsInstance(derived, tzinfo)
            self.assertTrue(type(derived) is PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(None), offset)
            self.assertEqual(derived.tzname(None), 'cookie')

#############################################################################
# Base clase for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
项目:ndk-python    作者:gittor    | 项目源码 | 文件源码
def test_argument_passing(self):
        cls = self.theclass
        # A datetime passes itself on, a time passes None.
        class introspective(tzinfo):
            def tzname(self, dt):    return dt and "real" or "none"
            def utcoffset(self, dt):
                return timedelta(minutes = dt and 42 or -42)
            dst = utcoffset

        obj = cls(1, 2, 3, tzinfo=introspective())

        expected = cls is time and "none" or "real"
        self.assertEqual(obj.tzname(), expected)

        expected = timedelta(minutes=(cls is time and -42 or 42))
        self.assertEqual(obj.utcoffset(), expected)
        self.assertEqual(obj.dst(), expected)
项目:ndk-python    作者:gittor    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 6, 7, 23, 20, 59, 1, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(*args, **{'tzinfo': tinfo})
        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:snowflake-connector-python    作者:snowflakedb    | 项目源码 | 文件源码
def _TIMESTAMP_LTZ_numpy_to_python(self, ctx):
        tzinfo = self._get_session_tz()
        scale = ctx['scale']

        def conv(value):
            zero_fill = ctx['zero_fill']
            seconds = int(value[0:-scale - 1]) if scale > 0 else int(value)
            # construct datetime object to get utcoffset
            dt = ZERO_EPOCH + timedelta(seconds=seconds)
            offset = tzinfo.utcoffset(dt)
            if offset.days < 0:
                ts = (int(value[0:-scale - 1]) + (offset.seconds - 86400)
                      ) * 1000000000
            else:
                ts = (int(value[0:-scale - 1]) + offset.seconds
                      ) * 1000000000
            if scale > 0:
                ts += (-1 if value[0] == u'-' else 1) * int(
                    value[-scale:] + zero_fill)
            return numpy.datetime64(ts, 'ns')

        return conv
项目:snowflake-connector-python    作者:snowflakedb    | 项目源码 | 文件源码
def _derive_offset_timestamp(self, value, is_utc=False):
        """
        Derives TZ offset and timestamp from the datatime object
        """
        tzinfo = value.tzinfo
        if tzinfo is None:
            # If no tzinfo is attached, use local timezone.
            tzinfo = self._get_session_tz() if not is_utc else pytz.UTC
            t = pytz.utc.localize(value, is_dst=False).astimezone(tzinfo)
        else:
            # if tzinfo is attached, just covert to epoch time
            # as the server expects it in UTC anyway
            t = value
        offset = tzinfo.utcoffset(
            t.replace(tzinfo=None)).total_seconds() / 60 + 1440
        return offset, t
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_pickling_subclass(self):
        # Make sure we can pickle/unpickle an instance of a subclass.
        offset = timedelta(minutes=-300)
        for otype, args in [
            (PicklableFixedOffset, (offset, 'cookie')),
            (timezone, (offset,)),
            (timezone, (offset, "EST"))]:
            orig = otype(*args)
            oname = orig.tzname(None)
            self.assertIsInstance(orig, tzinfo)
            self.assertIs(type(orig), otype)
            self.assertEqual(orig.utcoffset(None), offset)
            self.assertEqual(orig.tzname(None), oname)
            for pickler, unpickler, proto in pickle_choices:
                green = pickler.dumps(orig, proto)
                derived = unpickler.loads(green)
                self.assertIsInstance(derived, tzinfo)
                self.assertIs(type(derived), otype)
                self.assertEqual(derived.utcoffset(None), offset)
                self.assertEqual(derived.tzname(None), oname)
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_astimezone(self):
        # Pretty boring!  The TZ test is more interesting here.  astimezone()
        # simply can't be applied to a naive object.
        dt = self.theclass.now()
        f = FixedOffset(44, "")
        self.assertRaises(ValueError, dt.astimezone) # naive
        self.assertRaises(TypeError, dt.astimezone, f, f) # too many args
        self.assertRaises(TypeError, dt.astimezone, dt) # arg wrong type
        self.assertRaises(ValueError, dt.astimezone, f) # naive
        self.assertRaises(ValueError, dt.astimezone, tz=f)  # naive

        class Bogus(tzinfo):
            def utcoffset(self, dt): return None
            def dst(self, dt): return timedelta(0)
        bog = Bogus()
        self.assertRaises(ValueError, dt.astimezone, bog)   # naive
        self.assertRaises(ValueError,
                          dt.replace(tzinfo=bog).astimezone, f)

        class AlsoBogus(tzinfo):
            def utcoffset(self, dt): return timedelta(0)
            def dst(self, dt): return None
        alsobog = AlsoBogus()
        self.assertRaises(ValueError, dt.astimezone, alsobog) # also naive
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_argument_passing(self):
        cls = self.theclass
        # A datetime passes itself on, a time passes None.
        class introspective(tzinfo):
            def tzname(self, dt):    return dt and "real" or "none"
            def utcoffset(self, dt):
                return timedelta(minutes = dt and 42 or -42)
            dst = utcoffset

        obj = cls(1, 2, 3, tzinfo=introspective())

        expected = cls is time and "none" or "real"
        self.assertEqual(obj.tzname(), expected)

        expected = timedelta(minutes=(cls is time and -42 or 42))
        self.assertEqual(obj.utcoffset(), expected)
        self.assertEqual(obj.dst(), expected)
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 20, 59, 16, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(5, 6, 7, tzinfo=tinfo)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:kbe_server    作者:xiaohaoppy    | 项目源码 | 文件源码
def test_pickling(self):
        # Try one without a tzinfo.
        args = 6, 7, 23, 20, 59, 1, 64**2
        orig = self.theclass(*args)
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)

        # Try one with a tzinfo.
        tinfo = PicklableFixedOffset(-300, 'cookie')
        orig = self.theclass(*args, **{'tzinfo': tinfo})
        derived = self.theclass(1, 1, 1, tzinfo=FixedOffset(0, "", 0))
        for pickler, unpickler, proto in pickle_choices:
            green = pickler.dumps(orig, proto)
            derived = unpickler.loads(green)
            self.assertEqual(orig, derived)
            self.assertIsInstance(derived.tzinfo, PicklableFixedOffset)
            self.assertEqual(derived.utcoffset(), timedelta(minutes=-300))
            self.assertEqual(derived.tzname(), 'cookie')
项目:RPoint    作者:george17-meet    | 项目源码 | 文件源码
def __init__(self, offset):
        # tzinfo.utcoffset() throws an error for sub-minute amounts,
        # so round
        minutes = round(offset / 60.0, 0)
        self.__offset = timedelta(minutes=minutes)
项目:RPoint    作者:george17-meet    | 项目源码 | 文件源码
def utcoffset(self, dt):
        return self.__offset
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def utcoffset(self, dt):
        return self.__offset
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_non_abstractness(self):
        # In order to allow subclasses to get pickled, the C implementation
        # wasn't able to get away with having __init__ raise
        # NotImplementedError.
        useless = tzinfo()
        dt = datetime.max
        self.assertRaises(NotImplementedError, useless.tzname, dt)
        self.assertRaises(NotImplementedError, useless.utcoffset, dt)
        self.assertRaises(NotImplementedError, useless.dst, dt)
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_subclass_must_override(self):
        class NotEnough(tzinfo):
            def __init__(self, offset, name):
                self.__offset = offset
                self.__name = name
        self.assertTrue(issubclass(NotEnough, tzinfo))
        ne = NotEnough(3, "NotByALongShot")
        self.assertIsInstance(ne, tzinfo)

        dt = datetime.now()
        self.assertRaises(NotImplementedError, ne.tzname, dt)
        self.assertRaises(NotImplementedError, ne.utcoffset, dt)
        self.assertRaises(NotImplementedError, ne.dst, dt)
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_normal(self):
        fo = FixedOffset(3, "Three")
        self.assertIsInstance(fo, tzinfo)
        for dt in datetime.now(), None:
            self.assertEqual(fo.utcoffset(dt), timedelta(minutes=3))
            self.assertEqual(fo.tzname(dt), "Three")
            self.assertEqual(fo.dst(dt), timedelta(minutes=42))
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_utcoffset(self):
        dummy = self.DT
        for h in [0, 1.5, 12]:
            offset = h * HOUR
            self.assertEqual(offset, timezone(offset).utcoffset(dummy))
            self.assertEqual(-offset, timezone(-offset).utcoffset(dummy))

        with self.assertRaises(TypeError): self.EST.utcoffset('')
        with self.assertRaises(TypeError): self.EST.utcoffset(5)
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_fromutc(self):
        with self.assertRaises(ValueError):
            timezone.utc.fromutc(self.DT)
        with self.assertRaises(TypeError):
            timezone.utc.fromutc('not datetime')
        for tz in [self.EST, self.ACDT, Eastern]:
            utctime = self.DT.replace(tzinfo=tz)
            local = tz.fromutc(utctime)
            self.assertEqual(local - utctime, tz.utcoffset(local))
            self.assertEqual(local,
                             self.DT.replace(tzinfo=timezone.utc))
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_aware_datetime(self):
        # test that timezone instances can be used by datetime
        t = datetime(1, 1, 1)
        for tz in [timezone.min, timezone.max, timezone.utc]:
            self.assertEqual(tz.tzname(t),
                             t.replace(tzinfo=tz).tzname())
            self.assertEqual(tz.utcoffset(t),
                             t.replace(tzinfo=tz).utcoffset())
            self.assertEqual(tz.dst(t),
                             t.replace(tzinfo=tz).dst())

#############################################################################
# Base clase for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_strptime(self):
        string = '2004-12-01 13:02:47.197'
        format = '%Y-%m-%d %H:%M:%S.%f'
        expected = _strptime._strptime_datetime(self.theclass, string, format)
        got = self.theclass.strptime(string, format)
        self.assertEqual(expected, got)
        self.assertIs(type(expected), self.theclass)
        self.assertIs(type(got), self.theclass)

        strptime = self.theclass.strptime
        self.assertEqual(strptime("+0002", "%z").utcoffset(), 2 * MINUTE)
        self.assertEqual(strptime("-0002", "%z").utcoffset(), -2 * MINUTE)
        # Only local timezone and UTC are supported
        for tzseconds, tzname in ((0, 'UTC'), (0, 'GMT'),
                                 (-_time.timezone, _time.tzname[0])):
            if tzseconds < 0:
                sign = '-'
                seconds = -tzseconds
            else:
                sign ='+'
                seconds = tzseconds
            hours, minutes = divmod(seconds//60, 60)
            dtstr = "{}{:02d}{:02d} {}".format(sign, hours, minutes, tzname)
            dt = strptime(dtstr, "%z %Z")
            self.assertEqual(dt.utcoffset(), timedelta(seconds=tzseconds))
            self.assertEqual(dt.tzname(), tzname)
        # Can produce inconsistent datetime
        dtstr, fmt = "+1234 UTC", "%z %Z"
        dt = strptime(dtstr, fmt)
        self.assertEqual(dt.utcoffset(), 12 * HOUR + 34 * MINUTE)
        self.assertEqual(dt.tzname(), 'UTC')
        # yet will roundtrip
        self.assertEqual(dt.strftime(fmt), dtstr)

        # Produce naive datetime if no %z is provided
        self.assertEqual(strptime("UTC", "%Z").tzinfo, None)

        with self.assertRaises(ValueError): strptime("-2400", "%z")
        with self.assertRaises(ValueError): strptime("-000", "%z")
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_bad_tzinfo_classes(self):
        cls = self.theclass
        self.assertRaises(TypeError, cls, 1, 1, 1, tzinfo=12)

        class NiceTry(object):
            def __init__(self): pass
            def utcoffset(self, dt): pass
        self.assertRaises(TypeError, cls, 1, 1, 1, tzinfo=NiceTry)

        class BetterTry(tzinfo):
            def __init__(self): pass
            def utcoffset(self, dt): pass
        b = BetterTry()
        t = cls(1, 1, 1, tzinfo=b)
        self.assertTrue(t.tzinfo is b)
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_utc_offset_out_of_bounds(self):
        class Edgy(tzinfo):
            def __init__(self, offset):
                self.offset = timedelta(minutes=offset)
            def utcoffset(self, dt):
                return self.offset

        cls = self.theclass
        for offset, legit in ((-1440, False),
                              (-1439, True),
                              (1439, True),
                              (1440, False)):
            if cls is time:
                t = cls(1, 2, 3, tzinfo=Edgy(offset))
            elif cls is datetime:
                t = cls(6, 6, 6, 1, 2, 3, tzinfo=Edgy(offset))
            else:
                assert 0, "impossible"
            if legit:
                aofs = abs(offset)
                h, m = divmod(aofs, 60)
                tag = "%c%02d:%02d" % (offset < 0 and '-' or '+', h, m)
                if isinstance(t, datetime):
                    t = t.timetz()
                self.assertEqual(str(t), "01:02:03" + tag)
            else:
                self.assertRaises(ValueError, str, t)
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_mixed_compare(self):
        t1 = time(1, 2, 3)
        t2 = time(1, 2, 3)
        self.assertEqual(t1, t2)
        t2 = t2.replace(tzinfo=None)
        self.assertEqual(t1, t2)
        t2 = t2.replace(tzinfo=FixedOffset(None, ""))
        self.assertEqual(t1, t2)
        t2 = t2.replace(tzinfo=FixedOffset(0, ""))
        self.assertRaises(TypeError, lambda: t1 == t2)

        # In time w/ identical tzinfo objects, utcoffset is ignored.
        class Varies(tzinfo):
            def __init__(self):
                self.offset = timedelta(minutes=22)
            def utcoffset(self, t):
                self.offset += timedelta(minutes=1)
                return self.offset

        v = Varies()
        t1 = t2.replace(tzinfo=v)
        t2 = t2.replace(tzinfo=v)
        self.assertEqual(t1.utcoffset(), timedelta(minutes=23))
        self.assertEqual(t2.utcoffset(), timedelta(minutes=24))
        self.assertEqual(t1, t2)

        # But if they're not identical, it isn't ignored.
        t2 = t2.replace(tzinfo=Varies())
        self.assertTrue(t1 < t2)  # t1's offset counter still going up
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_subclass_timetz(self):

        class C(self.theclass):
            theAnswer = 42

            def __new__(cls, *args, **kws):
                temp = kws.copy()
                extra = temp.pop('extra')
                result = self.theclass.__new__(cls, *args, **temp)
                result.extra = extra
                return result

            def newmeth(self, start):
                return start + self.hour + self.second

        args = 4, 5, 6, 500, FixedOffset(-300, "EST", 1)

        dt1 = self.theclass(*args)
        dt2 = C(*args, **{'extra': 7})

        self.assertEqual(dt2.__class__, C)
        self.assertEqual(dt2.theAnswer, 42)
        self.assertEqual(dt2.extra, 7)
        self.assertEqual(dt1.utcoffset(), dt2.utcoffset())
        self.assertEqual(dt2.newmeth(-7), dt1.hour + dt1.second - 7)


# Testing datetime objects with a non-None tzinfo.
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_zones(self):
        est = FixedOffset(-300, "EST")
        utc = FixedOffset(0, "UTC")
        met = FixedOffset(60, "MET")
        t1 = datetime(2002, 3, 19,  7, 47, tzinfo=est)
        t2 = datetime(2002, 3, 19, 12, 47, tzinfo=utc)
        t3 = datetime(2002, 3, 19, 13, 47, tzinfo=met)
        self.assertEqual(t1.tzinfo, est)
        self.assertEqual(t2.tzinfo, utc)
        self.assertEqual(t3.tzinfo, met)
        self.assertEqual(t1.utcoffset(), timedelta(minutes=-300))
        self.assertEqual(t2.utcoffset(), timedelta(minutes=0))
        self.assertEqual(t3.utcoffset(), timedelta(minutes=60))
        self.assertEqual(t1.tzname(), "EST")
        self.assertEqual(t2.tzname(), "UTC")
        self.assertEqual(t3.tzname(), "MET")
        self.assertEqual(hash(t1), hash(t2))
        self.assertEqual(hash(t1), hash(t3))
        self.assertEqual(hash(t2), hash(t3))
        self.assertEqual(t1, t2)
        self.assertEqual(t1, t3)
        self.assertEqual(t2, t3)
        self.assertEqual(str(t1), "2002-03-19 07:47:00-05:00")
        self.assertEqual(str(t2), "2002-03-19 12:47:00+00:00")
        self.assertEqual(str(t3), "2002-03-19 13:47:00+01:00")
        d = 'datetime.datetime(2002, 3, 19, '
        self.assertEqual(repr(t1), d + "7, 47, tzinfo=est)")
        self.assertEqual(repr(t2), d + "12, 47, tzinfo=utc)")
        self.assertEqual(repr(t3), d + "13, 47, tzinfo=met)")
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_tzinfo_now(self):
        meth = self.theclass.now
        # Ensure it doesn't require tzinfo (i.e., that this doesn't blow up).
        base = meth()
        # Try with and without naming the keyword.
        off42 = FixedOffset(42, "42")
        another = meth(off42)
        again = meth(tz=off42)
        self.assertTrue(another.tzinfo is again.tzinfo)
        self.assertEqual(another.utcoffset(), timedelta(minutes=42))
        # Bad argument with and w/o naming the keyword.
        self.assertRaises(TypeError, meth, 16)
        self.assertRaises(TypeError, meth, tzinfo=16)
        # Bad keyword name.
        self.assertRaises(TypeError, meth, tinfo=off42)
        # Too many args.
        self.assertRaises(TypeError, meth, off42, off42)

        # We don't know which time zone we're in, and don't have a tzinfo
        # class to represent it, so seeing whether a tz argument actually
        # does a conversion is tricky.
        utc = FixedOffset(0, "utc", 0)
        for weirdtz in [FixedOffset(timedelta(hours=15, minutes=58), "weirdtz", 0),
                        timezone(timedelta(hours=15, minutes=58), "weirdtz"),]:
            for dummy in range(3):
                now = datetime.now(weirdtz)
                self.assertTrue(now.tzinfo is weirdtz)
                utcnow = datetime.utcnow().replace(tzinfo=utc)
                now2 = utcnow.astimezone(weirdtz)
                if abs(now - now2) < timedelta(seconds=30):
                    break
                # Else the code is broken, or more than 30 seconds passed between
                # calls; assuming the latter, just try again.
            else:
                # Three strikes and we're out.
                self.fail("utcnow(), now(tz), or astimezone() may be broken")
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_more_astimezone(self):
        # The inherited test_astimezone covered some trivial and error cases.
        fnone = FixedOffset(None, "None")
        f44m = FixedOffset(44, "44")
        fm5h = FixedOffset(-timedelta(hours=5), "m300")

        dt = self.theclass.now(tz=f44m)
        self.assertTrue(dt.tzinfo is f44m)
        # Replacing with degenerate tzinfo raises an exception.
        self.assertRaises(ValueError, dt.astimezone, fnone)
        # Ditto with None tz.
        self.assertRaises(TypeError, dt.astimezone, None)
        # Replacing with same tzinfo makes no change.
        x = dt.astimezone(dt.tzinfo)
        self.assertTrue(x.tzinfo is f44m)
        self.assertEqual(x.date(), dt.date())
        self.assertEqual(x.time(), dt.time())

        # Replacing with different tzinfo does adjust.
        got = dt.astimezone(fm5h)
        self.assertTrue(got.tzinfo is fm5h)
        self.assertEqual(got.utcoffset(), timedelta(hours=-5))
        expected = dt - dt.utcoffset()  # in effect, convert to UTC
        expected += fm5h.utcoffset(dt)  # and from there to local time
        expected = expected.replace(tzinfo=fm5h) # and attach new tzinfo
        self.assertEqual(got.date(), expected.date())
        self.assertEqual(got.time(), expected.time())
        self.assertEqual(got.timetz(), expected.timetz())
        self.assertTrue(got.tzinfo is expected.tzinfo)
        self.assertEqual(got, expected)
项目:zippy    作者:securesystemslab    | 项目源码 | 文件源码
def test_mixed_compare(self):
        t1 = datetime(1, 2, 3, 4, 5, 6, 7)
        t2 = datetime(1, 2, 3, 4, 5, 6, 7)
        self.assertEqual(t1, t2)
        t2 = t2.replace(tzinfo=None)
        self.assertEqual(t1, t2)
        t2 = t2.replace(tzinfo=FixedOffset(None, ""))
        self.assertEqual(t1, t2)
        t2 = t2.replace(tzinfo=FixedOffset(0, ""))
        self.assertRaises(TypeError, lambda: t1 == t2)

        # In datetime w/ identical tzinfo objects, utcoffset is ignored.
        class Varies(tzinfo):
            def __init__(self):
                self.offset = timedelta(minutes=22)
            def utcoffset(self, t):
                self.offset += timedelta(minutes=1)
                return self.offset

        v = Varies()
        t1 = t2.replace(tzinfo=v)
        t2 = t2.replace(tzinfo=v)
        self.assertEqual(t1.utcoffset(), timedelta(minutes=23))
        self.assertEqual(t2.utcoffset(), timedelta(minutes=24))
        self.assertEqual(t1, t2)

        # But if they're not identical, it isn't ignored.
        t2 = t2.replace(tzinfo=Varies())
        self.assertTrue(t1 < t2)  # t1's offset counter still going up