DateTime 对象

datetime 模块提供了各种日期和时间对象。 在使用任何这些函数之前，必须在你的源码中包含头文件 datetime.h (请注意此文件并未包含在 Python.h 中)，并且宏 PyDateTime_IMPORT 必须被发起调用，通常是作为模块初始化函数的一部分。 这个宏会将指向特定 C 结构的指针放入一个静态变量 PyDateTimeAPI 中，它会由下面的宏来使用。

类型检查宏：

int PyDate_Check(PyObject *ob)

Return true if ob is of type PyDateTime_DateType or a subtype of PyDateTime_DateType. ob must not be NULL.

int PyDate_CheckExact(PyObject *ob)

Return true if ob is of type PyDateTime_DateType. ob must not be NULL.

int PyDateTime_Check(PyObject *ob)

Return true if ob is of type PyDateTime_DateTimeType or a subtype of PyDateTime_DateTimeType. ob must not be NULL.

int PyDateTime_CheckExact(PyObject *ob)

Return true if ob is of type PyDateTime_DateTimeType. ob must not be NULL.

int PyTime_Check(PyObject *ob)

Return true if ob is of type PyDateTime_TimeType or a subtype of PyDateTime_TimeType. ob must not be NULL.

int PyTime_CheckExact(PyObject *ob)

Return true if ob is of type PyDateTime_TimeType. ob must not be NULL.

int PyDelta_Check(PyObject *ob)

Return true if ob is of type PyDateTime_DeltaType or a subtype of PyDateTime_DeltaType. ob must not be NULL.

int PyDelta_CheckExact(PyObject *ob)

Return true if ob is of type PyDateTime_DeltaType. ob must not be NULL.

int PyTZInfo_Check(PyObject *ob)

Return true if ob is of type PyDateTime_TZInfoType or a subtype of PyDateTime_TZInfoType. ob must not be NULL.

int PyTZInfo_CheckExact(PyObject *ob)

Return true if ob is of type PyDateTime_TZInfoType. ob must not be NULL.

用于创建对象的宏：

PyObject* PyDate_FromDate(int year, int month, int day)

Return value: New reference.

Return a datetime.date object with the specified year, month and day.

PyObject* PyDateTime_FromDateAndTime(int year, int month, int day, int hour, int minute, int second, int usecond)

Return value: New reference.

Return a datetime.datetime object with the specified year, month, day, hour, minute, second and microsecond.

PyObject* PyTime_FromTime(int hour, int minute, int second, int usecond)

Return value: New reference.

Return a datetime.time object with the specified hour, minute, second and microsecond.

PyObject* PyDelta_FromDSU(int days, int seconds, int useconds)

Return value: New reference.

Return a 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 datetime.timedelta objects.

Macros to extract fields from date objects. The argument must be an instance of PyDateTime_Date, including subclasses (such as PyDateTime_DateTime). The argument must not be NULL, and the type is not checked:

int PyDateTime_GET_YEAR(PyDateTime_Date *o)

以正整数的形式返回年份值。

int PyDateTime_GET_MONTH(PyDateTime_Date *o)

返回月，从0到12的整数。

int PyDateTime_GET_DAY(PyDateTime_Date *o)

返回日期，从0到31的整数。

Macros to extract fields from datetime objects. The argument must be an instance of PyDateTime_DateTime, including subclasses. The argument must not be NULL, and the type is not checked:

int PyDateTime_DATE_GET_HOUR(PyDateTime_DateTime *o)

返回小时，从0到23的整数。

int PyDateTime_DATE_GET_MINUTE(PyDateTime_DateTime *o)

返回分钟，从0到59的整数。

int PyDateTime_DATE_GET_SECOND(PyDateTime_DateTime *o)

返回秒，从0到59的整数。

int PyDateTime_DATE_GET_MICROSECOND(PyDateTime_DateTime *o)

返回微秒，从0到999999的整数。

Macros to extract fields from time objects. The argument must be an instance of PyDateTime_Time, including subclasses. The argument must not be NULL, and the type is not checked:

int PyDateTime_TIME_GET_HOUR(PyDateTime_Time *o)

返回小时，从0到23的整数。

int PyDateTime_TIME_GET_MINUTE(PyDateTime_Time *o)

返回分钟，从0到59的整数。

int PyDateTime_TIME_GET_SECOND(PyDateTime_Time *o)

返回秒，从0到59的整数。

int PyDateTime_TIME_GET_MICROSECOND(PyDateTime_Time *o)

返回微秒，从0到999999的整数。

Macros to extract fields from time delta objects. The argument must be an instance of PyDateTime_Delta, including subclasses. The argument must not be NULL, and the type is not checked:

int PyDateTime_DELTA_GET_DAYS(PyDateTime_Delta *o)

返回天数，从-999999999到999999999的整数。

3.3 新版功能.

int PyDateTime_DELTA_GET_SECONDS(PyDateTime_Delta *o)

返回秒数，从0到86399的整数。

3.3 新版功能.

int PyDateTime_DELTA_GET_MICROSECONDS(PyDateTime_Delta *o)

返回微秒数，从0到999999的整数。

3.3 新版功能.

一些便于模块实现 DB API 的宏:

PyObject* PyDateTime_FromTimestamp(PyObject *args)

Return value: New reference.

Create and return a new datetime.datetime object given an argument tuple suitable for passing to datetime.datetime.fromtimestamp().

PyObject* PyDate_FromTimestamp(PyObject *args)

Return value: New reference.

Create and return a new datetime.date object given an argument tuple suitable for passing to datetime.date.fromtimestamp().