Python cftime.DatetimeGregorian() Examples

The following are 3 code examples of cftime.DatetimeGregorian(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module cftime , or try the search function

Example #1

Source File: util.py From forest with BSD 3-Clause "New" or "Revised" License

6 votes

def to_datetime(d):

    if isinstance(d, dt.datetime):
        return d
    if isinstance(d, cftime.DatetimeNoLeap):
        return dt.datetime(d.year, d.month, d.day, d.hour, d.minute, d.second)
    elif isinstance(d, cftime.DatetimeGregorian):
        return dt.datetime(d.year, d.month, d.day, d.hour, d.minute, d.second)
    elif isinstance(d, str):
        errors = []
        for fmt in (
                "%Y-%m-%d %H:%M:%S",
                "%Y-%m-%dT%H:%M:%S",
                "%Y-%m-%dT%H:%M:%SZ"):
            try:
                return dt.datetime.strptime(d, fmt)
            except ValueError as e:
                errors.append(e)
                continue
        raise Exception(errors)
    elif isinstance(d, np.datetime64):
        return d.astype(dt.datetime)
    else:
        raise Exception("Unknown value: {} type: {}".format(d, type(d)))

Example #2

Source File: calendar.py From xclim with Apache License 2.0

6 votes

def ensure_cftime_array(time: Sequence):
    """Convert an input 1D array to an array of cftime objects. Python's datetime are converted to cftime.DatetimeGregorian.

    Raises ValueError when unable to cast the input.
    """
    if isinstance(time, xr.DataArray):
        time = time.indexes["time"]
    elif isinstance(time, np.ndarray):
        time = pd.DatetimeIndex(time)
    if isinstance(time[0], cftime.datetime):
        return time
    if isinstance(time[0], pydt.datetime):
        return np.array(
            [cftime.DatetimeGregorian(*ele.timetuple()[:6]) for ele in time]
        )
    raise ValueError("Unable to cast array to cftime dtype")

Example #3

Source File: testelementplot.py From holoviews with BSD 3-Clause "New" or "Revised" License

5 votes

def test_cftime_transform_gregorian_no_warn(self):
        try:
            import cftime
        except:
            raise SkipTest('Test requires cftime library')
        gregorian_dates = [cftime.DatetimeGregorian(2000, 2, 28),
                           cftime.DatetimeGregorian(2000, 3, 1),
                           cftime.DatetimeGregorian(2000, 3, 2)]
        curve = Curve((gregorian_dates, [1, 2, 3]))
        plot = bokeh_renderer.get_plot(curve)
        xs = plot.handles['cds'].data['x']
        self.assertEqual(xs.astype('int64'),
                         np.array([951696000000, 951868800000, 951955200000]))