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v3.10.20
Doc/c-api/datetime.rst
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gh-90359: Unify documentation style for datetime.rst (gh-94836)
14 июл 2022, 03:51
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.. highlight:: c .. _datetimeobjects: DateTime Objects ---------------- Various date and time objects are supplied by the :mod:`datetime` module. Before using any of these functions, the header file :file:`datetime.h` must be included in your source (note that this is not included by :file:`Python.h`), and the macro :c:macro:`PyDateTime_IMPORT` must be invoked, usually as part of the module initialisation function. The macro puts a pointer to a C structure into a static variable, :c:data:`PyDateTimeAPI`, that is used by the following macros. Macro for access to the UTC singleton: .. c:var:: PyObject* PyDateTime_TimeZone_UTC Returns the time zone singleton representing UTC, the same object as :attr:`datetime.timezone.utc`. .. versionadded:: 3.7 Type-check macros: .. c:function:: int PyDate_Check(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_DateType` or a subtype of :c:data:`PyDateTime_DateType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyDate_CheckExact(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_DateType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyDateTime_Check(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_DateTimeType` or a subtype of :c:data:`PyDateTime_DateTimeType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyDateTime_CheckExact(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_DateTimeType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyTime_Check(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_TimeType` or a subtype of :c:data:`PyDateTime_TimeType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyTime_CheckExact(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_TimeType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyDelta_Check(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_DeltaType` or a subtype of :c:data:`PyDateTime_DeltaType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyDelta_CheckExact(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_DeltaType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyTZInfo_Check(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_TZInfoType` or a subtype of :c:data:`PyDateTime_TZInfoType`. *ob* must not be ``NULL``. This function always succeeds. .. c:function:: int PyTZInfo_CheckExact(PyObject *ob) Return true if *ob* is of type :c:data:`PyDateTime_TZInfoType`. *ob* must not be ``NULL``. This function always succeeds. Macros to create objects: .. c:function:: PyObject* PyDate_FromDate(int year, int month, int day) Return a :class:`datetime.date` object with the specified year, month and day. .. c:function:: PyObject* PyDateTime_FromDateAndTime(int year, int month, int day, int hour, int minute, int second, int usecond) Return a :class:`datetime.datetime` object with the specified year, month, day, hour, minute, second and microsecond. .. c:function:: PyObject* PyDateTime_FromDateAndTimeAndFold(int year, int month, int day, int hour, int minute, int second, int usecond, int fold) Return a :class:`datetime.datetime` object with the specified year, month, day, hour, minute, second, microsecond and fold. .. versionadded:: 3.6 .. c:function:: PyObject* PyTime_FromTime(int hour, int minute, int second, int usecond) Return a :class:`datetime.time` object with the specified hour, minute, second and microsecond. .. c:function:: PyObject* PyTime_FromTimeAndFold(int hour, int minute, int second, int usecond, int fold) Return a :class:`datetime.time` object with the specified hour, minute, second, microsecond and fold. .. versionadded:: 3.6 .. c:function:: PyObject* PyDelta_FromDSU(int days, int seconds, int useconds) Return a :class:`datetime.timedelta` object representing the given number of days, seconds and microseconds. Normalization is performed so that the resulting number of microseconds and seconds lie in the ranges documented for :class:`datetime.timedelta` objects. .. c:function:: PyObject* PyTimeZone_FromOffset(PyDateTime_DeltaType* offset) Return a :class:`datetime.timezone` object with an unnamed fixed offset represented by the *offset* argument. .. versionadded:: 3.7 .. c:function:: PyObject* PyTimeZone_FromOffsetAndName(PyDateTime_DeltaType* offset, PyUnicode* name) Return a :class:`datetime.timezone` object with a fixed offset represented by the *offset* argument and with tzname *name*. .. versionadded:: 3.7 Macros to extract fields from date objects. The argument must be an instance of :c:data:`PyDateTime_Date`, including subclasses (such as :c:data:`PyDateTime_DateTime`). The argument must not be ``NULL``, and the type is not checked: .. c:function:: int PyDateTime_GET_YEAR(PyDateTime_Date *o) Return the year, as a positive int. .. c:function:: int PyDateTime_GET_MONTH(PyDateTime_Date *o) Return the month, as an int from 1 through 12. .. c:function:: int PyDateTime_GET_DAY(PyDateTime_Date *o) Return the day, as an int from 1 through 31. Macros to extract fields from datetime objects. The argument must be an instance of :c:data:`PyDateTime_DateTime`, including subclasses. The argument must not be ``NULL``, and the type is not checked: .. c:function:: int PyDateTime_DATE_GET_HOUR(PyDateTime_DateTime *o) Return the hour, as an int from 0 through 23. .. c:function:: int PyDateTime_DATE_GET_MINUTE(PyDateTime_DateTime *o) Return the minute, as an int from 0 through 59. .. c:function:: int PyDateTime_DATE_GET_SECOND(PyDateTime_DateTime *o) Return the second, as an int from 0 through 59. .. c:function:: int PyDateTime_DATE_GET_MICROSECOND(PyDateTime_DateTime *o) Return the microsecond, as an int from 0 through 999999. .. c:function:: int PyDateTime_DATE_GET_FOLD(PyDateTime_DateTime *o) Return the fold, as an int from 0 through 1. .. versionadded:: 3.6 .. c:function:: PyObject* PyDateTime_DATE_GET_TZINFO(PyDateTime_DateTime *o) Return the tzinfo (which may be ``None``). .. versionadded:: 3.10 Macros to extract fields from time objects. The argument must be an instance of :c:data:`PyDateTime_Time`, including subclasses. The argument must not be ``NULL``, and the type is not checked: .. c:function:: int PyDateTime_TIME_GET_HOUR(PyDateTime_Time *o) Return the hour, as an int from 0 through 23. .. c:function:: int PyDateTime_TIME_GET_MINUTE(PyDateTime_Time *o) Return the minute, as an int from 0 through 59. .. c:function:: int PyDateTime_TIME_GET_SECOND(PyDateTime_Time *o) Return the second, as an int from 0 through 59. .. c:function:: int PyDateTime_TIME_GET_MICROSECOND(PyDateTime_Time *o) Return the microsecond, as an int from 0 through 999999. .. c:function:: int PyDateTime_TIME_GET_FOLD(PyDateTime_Time *o) Return the fold, as an int from 0 through 1. .. versionadded:: 3.6 .. c:function:: PyObject* PyDateTime_TIME_GET_TZINFO(PyDateTime_Time *o) Return the tzinfo (which may be ``None``). .. versionadded:: 3.10 Macros to extract fields from time delta objects. The argument must be an instance of :c:data:`PyDateTime_Delta`, including subclasses. The argument must not be ``NULL``, and the type is not checked: .. c:function:: int PyDateTime_DELTA_GET_DAYS(PyDateTime_Delta *o) Return the number of days, as an int from -999999999 to 999999999. .. versionadded:: 3.3 .. c:function:: int PyDateTime_DELTA_GET_SECONDS(PyDateTime_Delta *o) Return the number of seconds, as an int from 0 through 86399. .. versionadded:: 3.3 .. c:function:: int PyDateTime_DELTA_GET_MICROSECONDS(PyDateTime_Delta *o) Return the number of microseconds, as an int from 0 through 999999. .. versionadded:: 3.3 Macros for the convenience of modules implementing the DB API: .. c:function:: PyObject* PyDateTime_FromTimestamp(PyObject *args) Create and return a new :class:`datetime.datetime` object given an argument tuple suitable for passing to :meth:`datetime.datetime.fromtimestamp()`. .. c:function:: PyObject* PyDate_FromTimestamp(PyObject *args) Create and return a new :class:`datetime.date` object given an argument tuple suitable for passing to :meth:`datetime.date.fromtimestamp()`.