Source code for

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Date and time manipulation functions.

.. spelling:word-list:: Datetime
import operator

from .._struct import kind as kindmod
from .._struct import series

[docs]class Year(series.Univariate): """Extract the year from given date/time instance. Args: value: Date/time feature to extract the *year* value from. Raises: dsl.GrammarError: If ``value`` is not a valid date/time. Examples: >>> ETL = """ value: series.Operable = property(operator.itemgetter(0)) kind: kindmod.Any = kindmod.Integer() def __new__(cls, value: series.Operable): kindmod.Date.ensure(series.Operable.ensure_is(value).kind) return super().__new__(cls, value)