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。
Macro for access to the UTC singleton:
-
PyObject*
PyDateTime_TimeZone_UTC
¶ Returns the time zone singleton representing UTC, the same object as
datetime.timezone.utc
.3.7 新版功能.
Type-check macros:
-
int
PyDate_Check
(PyObject *ob)¶ Return true if ob is of type
PyDateTime_DateType
or a subtype ofPyDateTime_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 ofPyDateTime_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 ofPyDateTime_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 ofPyDateTime_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 ofPyDateTime_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.
Macros to create objects:
-
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 fordatetime.timedelta
objects.
-
PyObject*
PyTimeZone_FromOffset
(PyDateTime_DeltaType* offset)¶ - Return value: New reference.
Return a
datetime.timezone
object with an unnamed fixed offset represented by the offset argument.3.7 新版功能.
-
PyObject*
PyTimeZone_FromOffsetAndName
(PyDateTime_DeltaType* offset, PyUnicode* name)¶ - Return value: New reference.
Return a
datetime.timezone
object with a fixed offset represented by the offset argument and with tzname name.3.7 新版功能.
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)¶ Return the year, as a positive int.
-
int
PyDateTime_GET_MONTH
(PyDateTime_Date *o)¶ Return the month, as an int from 1 through 12.
-
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 PyDateTime_DateTime
, including subclasses. The argument
must not be NULL, and the type is not checked:
-
int
PyDateTime_DATE_GET_HOUR
(PyDateTime_DateTime *o)¶ Return the hour, as an int from 0 through 23.
-
int
PyDateTime_DATE_GET_MINUTE
(PyDateTime_DateTime *o)¶ Return the minute, as an int from 0 through 59.
-
int
PyDateTime_DATE_GET_SECOND
(PyDateTime_DateTime *o)¶ Return the second, as an int from 0 through 59.
-
int
PyDateTime_DATE_GET_MICROSECOND
(PyDateTime_DateTime *o)¶ Return the microsecond, as an int from 0 through 999999.
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)¶ Return the hour, as an int from 0 through 23.
-
int
PyDateTime_TIME_GET_MINUTE
(PyDateTime_Time *o)¶ Return the minute, as an int from 0 through 59.
-
int
PyDateTime_TIME_GET_SECOND
(PyDateTime_Time *o)¶ Return the second, as an int from 0 through 59.
-
int
PyDateTime_TIME_GET_MICROSECOND
(PyDateTime_Time *o)¶ Return the microsecond, as an int from 0 through 999999.
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)¶ Return the number of days, as an int from -999999999 to 999999999.
3.3 新版功能.
-
int
PyDateTime_DELTA_GET_SECONDS
(PyDateTime_Delta *o)¶ Return the number of seconds, as an int from 0 through 86399.
3.3 新版功能.
-
int
PyDateTime_DELTA_GET_MICROSECONDS
(PyDateTime_Delta *o)¶ Return the number of microseconds, as an int from 0 through 999999.
3.3 新版功能.
Macros for the convenience of modules implementing the DB API:
-
PyObject*
PyDateTime_FromTimestamp
(PyObject *args)¶ - Return value: New reference.
Create and return a new
datetime.datetime
object given an argument tuple suitable for passing todatetime.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 todatetime.date.fromtimestamp()
.