Kaydet (Commit) 8349bc2b authored tarafından R David Murray's avatar R David Murray

#14766: Reflow the altered paragraphs.

üst 089d4d4f
...@@ -14,8 +14,8 @@ ...@@ -14,8 +14,8 @@
The :mod:`datetime` module supplies classes for manipulating dates and times in The :mod:`datetime` module supplies classes for manipulating dates and times in
both simple and complex ways. While date and time arithmetic is supported, the both simple and complex ways. While date and time arithmetic is supported, the
focus of the implementation is on efficient attribute extraction for output focus of the implementation is on efficient attribute extraction for output
formatting and manipulation. For related formatting and manipulation. For related functionality, see also the
functionality, see also the :mod:`time` and :mod:`calendar` modules. :mod:`time` and :mod:`calendar` modules.
There are two kinds of date and time objects: "naive" and "aware". There are two kinds of date and time objects: "naive" and "aware".
...@@ -26,22 +26,22 @@ is used to represent a specific moment in time that is not open to ...@@ -26,22 +26,22 @@ is used to represent a specific moment in time that is not open to
interpretation [#]_. interpretation [#]_.
+A naive object does not contain enough information to unambiguously locate +A naive object does not contain enough information to unambiguously locate
+itself relative to other date/time objects. Whether +itself relative to other date/time objects. Whether a naive object represents
a naive object represents Coordinated Universal Time (UTC), Coordinated Universal Time (UTC), local time, or time in some other timezone is
local time, or time in some other timezone is purely up to the program, just purely up to the program, just like it's up to the program whether a particular
like it's up to the program whether a particular number represents metres, number represents metres, miles, or mass. Naive objects are easy to understand
miles, or mass. Naive objects are easy to understand and to and to work with, at the cost of ignoring some aspects of reality.
work with, at the cost of ignoring some aspects of reality.
For applications requiring aware objects, :class:`.datetime` and :class:`.time`
For applications requiring aware objects, :class:`.datetime` and :class:`.time` objects objects have an optional time zone information attribute, :attr:`tzinfo`, that
have an optional time zone information attribute, :attr:`tzinfo`, that can be can be set to an instance of a subclass of the abstract :class:`tzinfo` class.
set to an instance of a subclass of the abstract :class:`tzinfo` class. These These :class:`tzinfo` objects capture information about the offset from UTC
:class:`tzinfo` objects capture information about the offset from UTC time, the time, the time zone name, and whether Daylight Saving Time is in effect. Note
time zone name, and whether Daylight Saving Time is in effect. Note that no that no concrete :class:`tzinfo` classes are supplied by the :mod:`datetime`
concrete :class:`tzinfo` classes are supplied by the :mod:`datetime` module. module. Supporting timezones at whatever level of detail is required is up to
Supporting timezones at whatever level of detail is required is up to the the application. The rules for time adjustment across the world are more
application. The rules for time adjustment across the world are more political political than rational, and there is no standard suitable for every
than rational, and there is no standard suitable for every application. application.
The :mod:`datetime` module exports the following constants: The :mod:`datetime` module exports the following constants:
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