Python pandas._libs.tslibs.timezones.get_timezone() Examples

The following are 21 code examples of pandas._libs.tslibs.timezones.get_timezone(). 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 pandas._libs.tslibs.timezones , or try the search function .
Example #1
Source File: numpy_records.py    From arctic with GNU Lesser General Public License v2.1 6 votes vote down vote up 
def _index_to_records(self, df):
        metadata = {}
        index = df.index
        index_tz = None

        if isinstance(index, MultiIndex):
            ix_vals, index_names, index_tz = _multi_index_to_records(index, len(df) == 0)
        else:
            ix_vals = [index.values]
            index_names = list(index.names)
            if index_names[0] is None:
                index_names = ['index']
                log.info("Index has no name, defaulting to 'index'")
            if isinstance(index, DatetimeIndex) and index.tz is not None:
                index_tz = get_timezone(index.tz)

        if index_tz is not None:
            metadata['index_tz'] = index_tz
        metadata['index'] = index_names

        return index_names, ix_vals, metadata
Example #2
Source File: numpy_records.py    From arctic with GNU Lesser General Public License v2.1 6 votes vote down vote up 
def _multi_index_to_records(index, empty_index):
    # array of tuples to numpy cols. copy copy copy
    if not empty_index:
        ix_vals = list(map(np.array, [index.get_level_values(i) for i in range(index.nlevels)]))
    else:
        # empty multi index has no size, create empty arrays for recarry.
        ix_vals = [np.array([]) for n in index.names]
    index_names = list(index.names)
    count = 0
    for i, n in enumerate(index_names):
        if n is None:
            index_names[i] = 'level_%d' % count
            count += 1
            log.info("Level in MultiIndex has no name, defaulting to %s" % index_names[i])
    index_tz = [get_timezone(i.tz) if isinstance(i, DatetimeIndex) else None for i in index.levels]
    return ix_vals, index_names, index_tz
Example #3
Source File: test_timestamp.py    From twitter-stock-recommendation with MIT License 5 votes vote down vote up 
def test_utc_z_designator(self):
        assert get_timezone(Timestamp('2014-11-02 01:00Z').tzinfo) == 'UTC'
Example #4
Source File: pytables.py    From elasticintel with GNU General Public License v3.0 5 votes vote down vote up 
def _set_tz(values, tz, preserve_UTC=False, coerce=False):
    """
    coerce the values to a DatetimeIndex if tz is set
    preserve the input shape if possible

    Parameters
    ----------
    values : ndarray
    tz : string/pickled tz object
    preserve_UTC : boolean,
        preserve the UTC of the result
    coerce : if we do not have a passed timezone, coerce to M8[ns] ndarray
    """
    if tz is not None:
        name = getattr(values, 'name', None)
        values = values.ravel()
        tz = timezones.get_timezone(_ensure_decoded(tz))
        values = DatetimeIndex(values, name=name)
        if values.tz is None:
            values = values.tz_localize('UTC').tz_convert(tz)
        if preserve_UTC:
            if tz == 'UTC':
                values = list(values)
    elif coerce:
        values = np.asarray(values, dtype='M8[ns]')

    return values
Example #5
Source File: pytables.py    From elasticintel with GNU General Public License v3.0 5 votes vote down vote up 
def _get_tz(tz):
    """ for a tz-aware type, return an encoded zone """
    zone = timezones.get_timezone(tz)
    if zone is None:
        zone = tz.utcoffset().total_seconds()
    return zone
Example #6
Source File: datetimes.py    From elasticintel with GNU General Public License v3.0 5 votes vote down vote up 
def _has_same_tz(self, other):
        zzone = self._timezone

        # vzone sholdn't be None if value is non-datetime like
        if isinstance(other, np.datetime64):
            # convert to Timestamp as np.datetime64 doesn't have tz attr
            other = Timestamp(other)
        vzone = timezones.get_timezone(getattr(other, 'tzinfo', '__no_tz__'))
        return zzone == vzone
Example #7
Source File: datetimes.py    From elasticintel with GNU General Public License v3.0 5 votes vote down vote up 
def _timezone(self):
        """ Comparable timezone both for pytz / dateutil"""
        return timezones.get_timezone(self.tzinfo)
Example #8
Source File: test_timestamp.py    From elasticintel with GNU General Public License v3.0 5 votes vote down vote up 
def test_utc_z_designator(self):
        assert get_timezone(Timestamp('2014-11-02 01:00Z').tzinfo) == 'UTC'
Example #9
Source File: pytables.py    From Splunking-Crime with GNU Affero General Public License v3.0 5 votes vote down vote up 
def _set_tz(values, tz, preserve_UTC=False, coerce=False):
    """
    coerce the values to a DatetimeIndex if tz is set
    preserve the input shape if possible

    Parameters
    ----------
    values : ndarray
    tz : string/pickled tz object
    preserve_UTC : boolean,
        preserve the UTC of the result
    coerce : if we do not have a passed timezone, coerce to M8[ns] ndarray
    """
    if tz is not None:
        name = getattr(values, 'name', None)
        values = values.ravel()
        tz = timezones.get_timezone(_ensure_decoded(tz))
        values = DatetimeIndex(values, name=name)
        if values.tz is None:
            values = values.tz_localize('UTC').tz_convert(tz)
        if preserve_UTC:
            if tz == 'UTC':
                values = list(values)
    elif coerce:
        values = np.asarray(values, dtype='M8[ns]')

    return values
Example #10
Source File: pytables.py    From Splunking-Crime with GNU Affero General Public License v3.0 5 votes vote down vote up 
def _get_tz(tz):
    """ for a tz-aware type, return an encoded zone """
    zone = timezones.get_timezone(tz)
    if zone is None:
        zone = tz.utcoffset().total_seconds()
    return zone
Example #11
Source File: datetimes.py    From Splunking-Crime with GNU Affero General Public License v3.0 5 votes vote down vote up 
def _has_same_tz(self, other):
        zzone = self._timezone

        # vzone sholdn't be None if value is non-datetime like
        if isinstance(other, np.datetime64):
            # convert to Timestamp as np.datetime64 doesn't have tz attr
            other = Timestamp(other)
        vzone = timezones.get_timezone(getattr(other, 'tzinfo', '__no_tz__'))
        return zzone == vzone
Example #12
Source File: datetimes.py    From Splunking-Crime with GNU Affero General Public License v3.0 5 votes vote down vote up 
def _timezone(self):
        """ Comparable timezone both for pytz / dateutil"""
        return timezones.get_timezone(self.tzinfo)
Example #13
Source File: pytables.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 5 votes vote down vote up 
def _set_tz(values, tz, preserve_UTC=False, coerce=False):
    """
    coerce the values to a DatetimeIndex if tz is set
    preserve the input shape if possible

    Parameters
    ----------
    values : ndarray
    tz : string/pickled tz object
    preserve_UTC : boolean,
        preserve the UTC of the result
    coerce : if we do not have a passed timezone, coerce to M8[ns] ndarray
    """
    if tz is not None:
        name = getattr(values, 'name', None)
        values = values.ravel()
        tz = timezones.get_timezone(_ensure_decoded(tz))
        values = DatetimeIndex(values, name=name)
        if values.tz is None:
            values = values.tz_localize('UTC').tz_convert(tz)
        if preserve_UTC:
            if tz == 'UTC':
                values = list(values)
    elif coerce:
        values = np.asarray(values, dtype='M8[ns]')

    return values
Example #14
Source File: pytables.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 5 votes vote down vote up 
def _get_tz(tz):
    """ for a tz-aware type, return an encoded zone """
    zone = timezones.get_timezone(tz)
    if zone is None:
        zone = tz.utcoffset().total_seconds()
    return zone
Example #15
Source File: test_timestamp.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 5 votes vote down vote up 
def test_utc_z_designator(self):
        assert get_timezone(Timestamp('2014-11-02 01:00Z').tzinfo) is utc
Example #16
Source File: pytables.py    From vnpy_crypto with MIT License 5 votes vote down vote up 
def _set_tz(values, tz, preserve_UTC=False, coerce=False):
    """
    coerce the values to a DatetimeIndex if tz is set
    preserve the input shape if possible

    Parameters
    ----------
    values : ndarray
    tz : string/pickled tz object
    preserve_UTC : boolean,
        preserve the UTC of the result
    coerce : if we do not have a passed timezone, coerce to M8[ns] ndarray
    """
    if tz is not None:
        name = getattr(values, 'name', None)
        values = values.ravel()
        tz = timezones.get_timezone(_ensure_decoded(tz))
        values = DatetimeIndex(values, name=name)
        if values.tz is None:
            values = values.tz_localize('UTC').tz_convert(tz)
        if preserve_UTC:
            if tz == 'UTC':
                values = list(values)
    elif coerce:
        values = np.asarray(values, dtype='M8[ns]')

    return values
Example #17
Source File: pytables.py    From vnpy_crypto with MIT License 5 votes vote down vote up 
def _get_tz(tz):
    """ for a tz-aware type, return an encoded zone """
    zone = timezones.get_timezone(tz)
    if zone is None:
        zone = tz.utcoffset().total_seconds()
    return zone
Example #18
Source File: test_timestamp.py    From vnpy_crypto with MIT License 5 votes vote down vote up 
def test_utc_z_designator(self):
        assert get_timezone(Timestamp('2014-11-02 01:00Z').tzinfo) == 'UTC'
Example #19
Source File: pytables.py    From recruit with Apache License 2.0 5 votes vote down vote up 
def _set_tz(values, tz, preserve_UTC=False, coerce=False):
    """
    coerce the values to a DatetimeIndex if tz is set
    preserve the input shape if possible

    Parameters
    ----------
    values : ndarray
    tz : string/pickled tz object
    preserve_UTC : boolean,
        preserve the UTC of the result
    coerce : if we do not have a passed timezone, coerce to M8[ns] ndarray
    """
    if tz is not None:
        name = getattr(values, 'name', None)
        values = values.ravel()
        tz = timezones.get_timezone(_ensure_decoded(tz))
        values = DatetimeIndex(values, name=name)
        if values.tz is None:
            values = values.tz_localize('UTC').tz_convert(tz)
        if preserve_UTC:
            if tz == 'UTC':
                values = list(values)
    elif coerce:
        values = np.asarray(values, dtype='M8[ns]')

    return values
Example #20
Source File: pytables.py    From recruit with Apache License 2.0 5 votes vote down vote up 
def _get_tz(tz):
    """ for a tz-aware type, return an encoded zone """
    zone = timezones.get_timezone(tz)
    if zone is None:
        zone = tz.utcoffset().total_seconds()
    return zone
Example #21
Source File: test_timestamp.py    From recruit with Apache License 2.0 5 votes vote down vote up 
def test_utc_z_designator(self):
        assert get_timezone(Timestamp('2014-11-02 01:00Z').tzinfo) is utc