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author | Georg Brandl <georg@python.org> | 2008-01-20 09:30:57 (GMT) |
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committer | Georg Brandl <georg@python.org> | 2008-01-20 09:30:57 (GMT) |
commit | 54a3faae0806ab1dd8290e16acc8ab7acdd4762b (patch) | |
tree | 3f58890aaea549244ca64e911f8deee3ca5bd08d /Doc/c-api/datetime.rst | |
parent | 135bf209ac9a44244a97fd3bf5ff638a320e1a43 (diff) | |
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Split C API docs in Py3k branch.
Diffstat (limited to 'Doc/c-api/datetime.rst')
-rw-r--r-- | Doc/c-api/datetime.rst | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/Doc/c-api/datetime.rst b/Doc/c-api/datetime.rst new file mode 100644 index 0000000..044d3e5 --- /dev/null +++ b/Doc/c-api/datetime.rst @@ -0,0 +1,183 @@ +.. highlightlang:: 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 :cfunc:`PyDateTime_IMPORT` must be invoked. The macro puts a +pointer to a C structure into a static variable, ``PyDateTimeAPI``, that is +used by the following macros. + +Type-check macros: + +.. cfunction:: int PyDate_Check(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_DateType` or a subtype of + :cdata:`PyDateTime_DateType`. *ob* must not be *NULL*. + + +.. cfunction:: int PyDate_CheckExact(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_DateType`. *ob* must not be + *NULL*. + + +.. cfunction:: int PyDateTime_Check(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_DateTimeType` or a subtype of + :cdata:`PyDateTime_DateTimeType`. *ob* must not be *NULL*. + + +.. cfunction:: int PyDateTime_CheckExact(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_DateTimeType`. *ob* must not + be *NULL*. + + +.. cfunction:: int PyTime_Check(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_TimeType` or a subtype of + :cdata:`PyDateTime_TimeType`. *ob* must not be *NULL*. + + +.. cfunction:: int PyTime_CheckExact(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_TimeType`. *ob* must not be + *NULL*. + + +.. cfunction:: int PyDelta_Check(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_DeltaType` or a subtype of + :cdata:`PyDateTime_DeltaType`. *ob* must not be *NULL*. + + +.. cfunction:: int PyDelta_CheckExact(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_DeltaType`. *ob* must not be + *NULL*. + + +.. cfunction:: int PyTZInfo_Check(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_TZInfoType` or a subtype of + :cdata:`PyDateTime_TZInfoType`. *ob* must not be *NULL*. + + +.. cfunction:: int PyTZInfo_CheckExact(PyObject *ob) + + Return true if *ob* is of type :cdata:`PyDateTime_TZInfoType`. *ob* must not be + *NULL*. + + +Macros to create objects: + +.. cfunction:: PyObject* PyDate_FromDate(int year, int month, int day) + + Return a ``datetime.date`` object with the specified year, month and day. + + +.. cfunction:: PyObject* PyDateTime_FromDateAndTime(int year, int month, int day, int hour, int minute, int second, int usecond) + + Return a ``datetime.datetime`` object with the specified year, month, day, hour, + minute, second and microsecond. + + +.. cfunction:: PyObject* PyTime_FromTime(int hour, int minute, int second, int usecond) + + Return a ``datetime.time`` object with the specified hour, minute, second and + microsecond. + + +.. cfunction:: PyObject* PyDelta_FromDSU(int days, int seconds, int useconds) + + 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 +:cdata:`PyDateTime_Date`, including subclasses (such as +:cdata:`PyDateTime_DateTime`). The argument must not be *NULL*, and the type is +not checked: + +.. cfunction:: int PyDateTime_GET_YEAR(PyDateTime_Date *o) + + Return the year, as a positive int. + + +.. cfunction:: int PyDateTime_GET_MONTH(PyDateTime_Date *o) + + Return the month, as an int from 1 through 12. + + +.. cfunction:: 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 :cdata:`PyDateTime_DateTime`, including subclasses. The argument +must not be *NULL*, and the type is not checked: + +.. cfunction:: int PyDateTime_DATE_GET_HOUR(PyDateTime_DateTime *o) + + Return the hour, as an int from 0 through 23. + + +.. cfunction:: int PyDateTime_DATE_GET_MINUTE(PyDateTime_DateTime *o) + + Return the minute, as an int from 0 through 59. + + +.. cfunction:: int PyDateTime_DATE_GET_SECOND(PyDateTime_DateTime *o) + + Return the second, as an int from 0 through 59. + + +.. cfunction:: 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 +:cdata:`PyDateTime_Time`, including subclasses. The argument must not be *NULL*, +and the type is not checked: + +.. cfunction:: int PyDateTime_TIME_GET_HOUR(PyDateTime_Time *o) + + Return the hour, as an int from 0 through 23. + + +.. cfunction:: int PyDateTime_TIME_GET_MINUTE(PyDateTime_Time *o) + + Return the minute, as an int from 0 through 59. + + +.. cfunction:: int PyDateTime_TIME_GET_SECOND(PyDateTime_Time *o) + + Return the second, as an int from 0 through 59. + + +.. cfunction:: int PyDateTime_TIME_GET_MICROSECOND(PyDateTime_Time *o) + + Return the microsecond, as an int from 0 through 999999. + + +Macros for the convenience of modules implementing the DB API: + +.. cfunction:: PyObject* PyDateTime_FromTimestamp(PyObject *args) + + Create and return a new ``datetime.datetime`` object given an argument tuple + suitable for passing to ``datetime.datetime.fromtimestamp()``. + + +.. cfunction:: PyObject* PyDate_FromTimestamp(PyObject *args) + + Create and return a new ``datetime.date`` object given an argument tuple + suitable for passing to ``datetime.date.fromtimestamp()``. |