[po] auto sync bot

zhsj · zhsj · commit ea8eb302c575 · 2018-10-28T20:11:33.000+08:00
diff --git a/reference/datamodel.po b/reference/datamodel.po
@@ -1401,6 +1401,8 @@ msgid ""
 "object is implicitly created when an exception occurs, and may also be "
 "explicitly created by calling :class:`types.TracebackType`."
 msgstr ""
+"回溯对象表示一个异常的栈跟踪记录。当异常发生时会隐式地创建一个回溯对象，也可能通过调用 :class:`types.TracebackType` "
+"显式地创建。"
 
 #: ../../reference/datamodel.rst:1025
 msgid ""
@@ -1412,6 +1414,9 @@ msgid ""
 "``sys.exc_info()``, and as the ``__traceback__`` attribute of the caught "
 "exception."
 msgstr ""
+"对于隐式地创建的回溯对象，当查找异常句柄使得执行栈展开时，会在每个展开层级的当前回溯之前插入一个回溯对象。当进入一个异常句柄时，栈跟踪将对程序启用。(参见"
+" :ref:`try` 一节。) 它可作为 ``sys.exc_info()`` 所返回的元组的第三项，以及所捕获异常的 "
+"``__traceback__`` 属性被获取。"
 
 #: ../../reference/datamodel.rst:1033
 msgid ""
@@ -1420,13 +1425,15 @@ msgid ""
 "interactive, it is also made available to the user as "
 "``sys.last_traceback``."
 msgstr ""
+"当程序不包含可用的句柄时，栈跟踪会 (以良好的格式) 写入标准错误流；如果解释器处于交互模式，它也可作为 ``sys.last_traceback`` "
+"对用户启用。"
 
 #: ../../reference/datamodel.rst:1038
 msgid ""
 "For explicitly created tracebacks, it is up to the creator of the traceback "
 "to determine how the ``tb_next`` attributes should be linked to form a full "
 "stack trace."
-msgstr ""
+msgstr "对于显式创建的回溯对象，则由回溯对象的创建者来决定应该如何链接 ``tb_next`` 属性来构成完整的栈跟踪。"
 
 #: ../../reference/datamodel.rst:1048
 msgid ""
@@ -1437,19 +1444,22 @@ msgid ""
 "number of its frame object if the exception occurred in a :keyword:`try` "
 "statement with no matching except clause or with a finally clause."
 msgstr ""
+"特殊的只读属性: :attr:`tb_frame` 指向当前层级的执行帧; :attr:`tb_lineno` 给出发生异常所在的行号; "
+":attr:`tb_lasti` 标示具体指令。如果异常发生于没有匹配的 except 子句或有 finally 子句的 :keyword:`try` "
+"语句中，回溯对象中的行号和最后指令可能与相应帧对象中行号不同。"
 
 #: ../../reference/datamodel.rst:1060
 msgid ""
 "Special writable attribute: :attr:`tb_next` is the next level in the stack "
 "trace (towards the frame where the exception occurred), or ``None`` if there"
 " is no next level."
-msgstr ""
+msgstr "特殊的可写属性: :attr:`tb_next` 为栈跟踪中的下一层级 (通往发生异常的帧)，如果没有下一层级则为 ``None``。"
 
 #: ../../reference/datamodel.rst:1064
 msgid ""
 "Traceback objects can now be explicitly instantiated from Python code, and "
 "the ``tb_next`` attribute of existing instances can be updated."
-msgstr ""
+msgstr "回溯对象现在可以使用 Python 代码显式地实例化，现有实例的 ``tb_next`` 属性可以被更新。"
 
 #: ../../reference/datamodel.rst:1092
 msgid "Slice objects"
