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Kirill Smelkov
cpython
Commits
b67878a5
Commit
b67878a5
authored
Oct 15, 2010
by
Georg Brandl
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#7790: move table of struct_time members to the actual description of struct_time.
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Doc/library/time.rst
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b67878a5
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@@ -16,21 +16,23 @@ semantics of these functions varies among platforms.
An explanation of some terminology and conventions is in order.
.. index:: single: epoch
.. index:: single: epoch
* The :dfn:`epoch` is the point where the time starts. On January 1st of that
year, at 0 hours, the "time since the epoch" is zero. For Unix, the epoch is
1970. To find out what the epoch is, look at ``gmtime(0)``.
.. index:: single: Year 2038
.. index:: single: Year 2038
* The functions in this module do not handle dates and times before the epoch or
far in the future. The cut-off point in the future is determined by the C
library; for Unix, it is typically in 2038.
.. index::
single: Year 2000
single: Y2K
.. index::
single: Year 2000
single: Y2K
.. _time-y2kissues:
* **Year 2000 (Y2K) issues**: Python depends on the platform's C library, which
generally doesn't have year 2000 issues, since all dates and times are
...
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@@ -47,16 +49,16 @@ An explanation of some terminology and conventions is in order.
Note that this is new as of Python 1.5.2(a2); earlier versions, up to Python
1.5.1 and 1.5.2a1, would add 1900 to year values below 1900.
.. index::
single: UTC
single: Coordinated Universal Time
single: Greenwich Mean Time
.. index::
single: UTC
single: Coordinated Universal Time
single: Greenwich Mean Time
* UTC is Coordinated Universal Time (formerly known as Greenwich Mean Time, or
GMT). The acronym UTC is not a mistake but a compromise between English and
French.
.. index:: single: Daylight Saving Time
.. index:: single: Daylight Saving Time
* DST is Daylight Saving Time, an adjustment of the timezone by (usually) one
hour during part of the year. DST rules are magic (determined by local law) and
...
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@@ -81,38 +83,7 @@ An explanation of some terminology and conventions is in order.
:func:`gmtime`, :func:`localtime`, and :func:`strptime` also offer attribute
names for individual fields.
+-------+-------------------+---------------------------------+
| Index | Attribute | Values |
+=======+===================+=================================+
| 0 | :attr:`tm_year` | (for example, 1993) |
+-------+-------------------+---------------------------------+
| 1 | :attr:`tm_mon` | range [1, 12] |
+-------+-------------------+---------------------------------+
| 2 | :attr:`tm_mday` | range [1, 31] |
+-------+-------------------+---------------------------------+
| 3 | :attr:`tm_hour` | range [0, 23] |
+-------+-------------------+---------------------------------+
| 4 | :attr:`tm_min` | range [0, 59] |
+-------+-------------------+---------------------------------+
| 5 | :attr:`tm_sec` | range [0, 61]; see **(1)** in |
| | | :func:`strftime` description |
+-------+-------------------+---------------------------------+
| 6 | :attr:`tm_wday` | range [0, 6], Monday is 0 |
+-------+-------------------+---------------------------------+
| 7 | :attr:`tm_yday` | range [1, 366] |
+-------+-------------------+---------------------------------+
| 8 | :attr:`tm_isdst` | 0, 1 or -1; see below |
+-------+-------------------+---------------------------------+
Note that unlike the C structure, the month value is a range of [1, 12],
not [0, 11].
A year value will be handled as described under "Year 2000 (Y2K) issues" above.
A ``-1`` argument as the daylight savings flag, passed to :func:`mktime` will
usually result in the correct daylight savings state to be filled in.
When a tuple with an incorrect length is passed to a function expecting a
:class:`struct_time`, or having elements of the wrong type, a :exc:`TypeError`
is raised.
See :class:`struct_time` for a description of these objects.
* Use the following functions to convert between time representations:
...
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@@ -389,10 +360,45 @@ The module defines the following functions and data items:
documented as supported.
..
data
:: struct_time
..
class
:: struct_time
The type of the time value sequence returned by :func:`gmtime`,
:func:`localtime`, and :func:`strptime`.
:func:`localtime`, and :func:`strptime`. It is an object with a :term:`named
tuple` interface: values can be accessed by index and by attribute name. The
following values are present:
+-------+-------------------+---------------------------------+
| Index | Attribute | Values |
+=======+===================+=================================+
| 0 | :attr:`tm_year` | (for example, 1993) |
+-------+-------------------+---------------------------------+
| 1 | :attr:`tm_mon` | range [1, 12] |
+-------+-------------------+---------------------------------+
| 2 | :attr:`tm_mday` | range [1, 31] |
+-------+-------------------+---------------------------------+
| 3 | :attr:`tm_hour` | range [0, 23] |
+-------+-------------------+---------------------------------+
| 4 | :attr:`tm_min` | range [0, 59] |
+-------+-------------------+---------------------------------+
| 5 | :attr:`tm_sec` | range [0, 61]; see **(1)** in |
| | | :func:`strftime` description |
+-------+-------------------+---------------------------------+
| 6 | :attr:`tm_wday` | range [0, 6], Monday is 0 |
+-------+-------------------+---------------------------------+
| 7 | :attr:`tm_yday` | range [1, 366] |
+-------+-------------------+---------------------------------+
| 8 | :attr:`tm_isdst` | 0, 1 or -1; see below |
+-------+-------------------+---------------------------------+
Note that unlike the C structure, the month value is a range of [1, 12], not
[0, 11]. A year value will be handled as described under :ref:`Year 2000
(Y2K) issues <time-y2kissues>` above. A ``-1`` argument as the daylight
savings flag, passed to :func:`mktime` will usually result in the correct
daylight savings state to be filled in.
When a tuple with an incorrect length is passed to a function expecting a
:class:`struct_time`, or having elements of the wrong type, a
:exc:`TypeError` is raised.
.. function:: time()
...
...
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