Python dates.UTC属性代码示例

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def _test_date2num_dst(date_range, tz_convert):
    # Timezones
    BRUSSELS = dateutil.tz.gettz('Europe/Brussels')
    UTC = mdates.UTC

    # Create a list of timezone-aware datetime objects in UTC
    # Interval is 0b0.0000011 days, to prevent float rounding issues
    dtstart = datetime.datetime(2014, 3, 30, 0, 0, tzinfo=UTC)
    interval = datetime.timedelta(minutes=33, seconds=45)
    interval_days = 0.0234375   # 2025 / 86400 seconds
    N = 8

    dt_utc = date_range(start=dtstart, freq=interval, periods=N)
    dt_bxl = tz_convert(dt_utc, BRUSSELS)

    expected_ordinalf = [735322.0 + (i * interval_days) for i in range(N)]
    actual_ordinalf = list(mdates.date2num(dt_bxl))

    assert actual_ordinalf == expected_ordinalf 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def _test_date2num_dst(date_range, tz_convert):
    # Timezones
    BRUSSELS = pytz.timezone('Europe/Brussels')
    UTC = pytz.UTC

    # Create a list of timezone-aware datetime objects in UTC
    # Interval is 0b0.0000011 days, to prevent float rounding issues
    dtstart = datetime.datetime(2014, 3, 30, 0, 0, tzinfo=UTC)
    interval = datetime.timedelta(minutes=33, seconds=45)
    interval_days = 0.0234375   # 2025 / 86400 seconds
    N = 8

    dt_utc = date_range(start=dtstart, freq=interval, periods=N)
    dt_bxl = tz_convert(dt_utc, BRUSSELS)

    expected_ordinalf = [735322.0 + (i * interval_days) for i in range(N)]
    actual_ordinalf = list(mdates.date2num(dt_bxl))

    assert actual_ordinalf == expected_ordinalf 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def _dt_to_float_ordinal(dt):
    """
    Convert :mod:`datetime` to the Gregorian date as UTC float days,
    preserving hours, minutes, seconds and microseconds.  Return value
    is a :func:`float`.
    """
    if (isinstance(dt, (np.ndarray, Index, ABCSeries)
                   ) and is_datetime64_ns_dtype(dt)):
        base = dates.epoch2num(dt.asi8 / 1.0E9)
    else:
        base = dates.date2num(dt)
    return base


# Datetime Conversion 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def __init__(self, locator, tz=None, defaultfmt='%Y-%m-%d'):
        dates.AutoDateFormatter.__init__(self, locator, tz, defaultfmt)
        # matplotlib.dates._UTC has no _utcoffset called by pandas
        if self._tz is dates.UTC:
            self._tz._utcoffset = self._tz.utcoffset(None) 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def __init__(self, locator, tz=None, defaultfmt='%Y-%m-%d'):
        dates.AutoDateFormatter.__init__(self, locator, tz, defaultfmt)
        # matplotlib.dates._UTC has no _utcoffset called by pandas
        if self._tz is dates.UTC:
            self._tz._utcoffset = self._tz.utcoffset(None)

        # For mpl > 2.0 the format strings are controlled via rcparams
        # so do not mess with them.  For mpl < 2.0 change the second
        # break point and add a musec break point
        if _mpl_le_2_0_0():
            self.scaled[1. / SEC_PER_DAY] = '%H:%M:%S'
            self.scaled[1. / MUSEC_PER_DAY] = '%H:%M:%S.%f' 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def _dt_to_float_ordinal(dt):
    """
    Convert :mod:`datetime` to the Gregorian date as UTC float days,
    preserving hours, minutes, seconds and microseconds.  Return value
    is a :func:`float`.
    """
    base = dates.date2num(dt)
    return base


### Datetime Conversion 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def __init__(self, locator, tz=None, defaultfmt='%Y-%m-%d'):
        dates.AutoDateFormatter.__init__(self, locator, tz, defaultfmt)
        # matplotlib.dates._UTC has no _utcoffset called by pandas
        if self._tz is dates.UTC:
            self._tz._utcoffset = self._tz.utcoffset(None)
        self.scaled = {
            365.0: '%Y',
            30.: '%b %Y',
            1.0: '%b %d %Y',
            1. / 24.: '%H:%M:%S',
            1. / 24. / 3600. / 1000.: '%H:%M:%S.%f'
        } 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def test_drange():
    """
    This test should check if drange works as expected, and if all the
    rounding errors are fixed
    """
    start = datetime.datetime(2011, 1, 1, tzinfo=mdates.UTC)
    end = datetime.datetime(2011, 1, 2, tzinfo=mdates.UTC)
    delta = datetime.timedelta(hours=1)
    # We expect 24 values in drange(start, end, delta), because drange returns
    # dates from an half open interval [start, end)
    assert_equal(24, len(mdates.drange(start, end, delta)))

    # if end is a little bit later, we expect the range to contain one element
    # more
    end = end + datetime.timedelta(microseconds=1)
    assert_equal(25, len(mdates.drange(start, end, delta)))

    # reset end
    end = datetime.datetime(2011, 1, 2, tzinfo=mdates.UTC)

    # and tst drange with "complicated" floats:
    # 4 hours = 1/6 day, this is an "dangerous" float
    delta = datetime.timedelta(hours=4)
    daterange = mdates.drange(start, end, delta)
    assert_equal(6, len(daterange))
    assert_equal(mdates.num2date(daterange[-1]), end - delta) 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def test_RRuleLocator_dayrange():
    loc = mdates.DayLocator()
    x1 = datetime.datetime(year=1, month=1, day=1, tzinfo=mdates.UTC)
    y1 = datetime.datetime(year=1, month=1, day=16, tzinfo=mdates.UTC)
    loc.tick_values(x1, y1)
    # On success, no overflow error shall be thrown 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def test_drange():
    """
    This test should check if drange works as expected, and if all the
    rounding errors are fixed
    """
    start = datetime.datetime(2011, 1, 1, tzinfo=mdates.UTC)
    end = datetime.datetime(2011, 1, 2, tzinfo=mdates.UTC)
    delta = datetime.timedelta(hours=1)
    # We expect 24 values in drange(start, end, delta), because drange returns
    # dates from an half open interval [start, end)
    assert len(mdates.drange(start, end, delta)) == 24

    # if end is a little bit later, we expect the range to contain one element
    # more
    end = end + datetime.timedelta(microseconds=1)
    assert len(mdates.drange(start, end, delta)) == 25

    # reset end
    end = datetime.datetime(2011, 1, 2, tzinfo=mdates.UTC)

    # and tst drange with "complicated" floats:
    # 4 hours = 1/6 day, this is an "dangerous" float
    delta = datetime.timedelta(hours=4)
    daterange = mdates.drange(start, end, delta)
    assert len(daterange) == 6
    assert mdates.num2date(daterange[-1]) == (end - delta) 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def test_tz_utc():
    dt = datetime.datetime(1970, 1, 1, tzinfo=mdates.UTC)
    dt.tzname() 

# 需要导入模块: from matplotlib import dates [as 别名]
# 或者: from matplotlib.dates import UTC [as 别名]
def test_RRuleLocator_dayrange():
    loc = mdates.DayLocator()
    x1 = datetime.datetime(year=1, month=1, day=1, tzinfo=pytz.UTC)
    y1 = datetime.datetime(year=1, month=1, day=16, tzinfo=pytz.UTC)
    loc.tick_values(x1, y1)
    # On success, no overflow error shall be thrown